129.49 is what percent of 143 - step by step solution

To get the solution, we are looking for, we need to point out what we know.

1. We assume, that the number 143 is 100% - because it's the output value of the task.
2. We assume, that x is the value we are looking for.
3. If 100% equals 143, so we can write it down as 100%=143.
4. We know, that x% equals 129.49 of the output value, so we can write it down as x%=129.49.
5. Now we have two simple equations:
1) 100%=143
2) x%=129.49
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
100%/x%=143/129.49
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 129.49 is what percent of 143

100%/x%=143/129.49
(100/x)*x=(143/129.49)*x       - we multiply both sides of the equation by x
100=1.1043323808788*x       - we divide both sides of the equation by (1.1043323808788) to get x
100/1.1043323808788=x
90.552447552448=x
x=90.552447552448

now we have:
129.49 is 90.552447552448% of 143