128.34 is what percent of 2100 - 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 2100 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 2100, so we can write it down as 100%=2100.
4. We know, that x% equals 128.34 of the output value, so we can write it down as x%=128.34.
5. Now we have two simple equations:
1) 100%=2100
2) x%=128.34
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%=2100/128.34
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 128.34 is what percent of 2100

100%/x%=2100/128.34
(100/x)*x=(2100/128.34)*x       - we multiply both sides of the equation by x
100=16.362786348761*x       - we divide both sides of the equation by (16.362786348761) to get x
100/16.362786348761=x
6.1114285714286=x
x=6.1114285714286

now we have:
128.34 is 6.1114285714286% of 2100