138.26 is what percent of 800 - 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 800 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 800, so we can write it down as 100%=800.
4. We know, that x% equals 138.26 of the output value, so we can write it down as x%=138.26.
5. Now we have two simple equations:
1) 100%=800
2) x%=138.26
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%=800/138.26
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 138.26 is what percent of 800

100%/x%=800/138.26
(100/x)*x=(800/138.26)*x       - we multiply both sides of the equation by x
100=5.786199913207*x       - we divide both sides of the equation by (5.786199913207) to get x
100/5.786199913207=x
17.2825=x
x=17.2825

now we have:
138.26 is 17.2825% of 800