6 is what percent of 138.9 - 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 138.9 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 138.9, so we can write it down as 100%=138.9.
4. We know, that x% equals 6 of the output value, so we can write it down as x%=6.
5. Now we have two simple equations:
1) 100%=138.9
2) x%=6
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%=138.9/6
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 6 is what percent of 138.9

100%/x%=138.9/6
(100/x)*x=(138.9/6)*x       - we multiply both sides of the equation by x
100=23.15*x       - we divide both sides of the equation by (23.15) to get x
100/23.15=x
4.3196544276458=x
x=4.3196544276458

now we have:
6 is 4.3196544276458% of 138.9