I've been thinking about this image
Ok, so. This says live and work. Meaning there should be more time were we're not working and just in retirement. And I found it.
So, let's say the average person starts working at 15 and retires at 65. This is then 50 years of working. Then let's say that person will die at about 90(yes, people can die earlier but just go with it). That means that for 40 years, your aren't working.
Using this 4/9 and 5/9. I I then divided the 120 up there by 5(to the people who don't know why(this is tumblr, you are stupid) people work for 5/9 of their life. And as 120 is the years working. We divide it by 5) and got 24. Meaning that we then multiply 24 by 4 to find the years you don't spend working. Which is 96. Removing 15 as people will likely start working at the same age. This means we will live for 81 years after retiring. All in all this says in 10 years humans will live to 216