Finding the Fourth Proportional to 113,938.06, 157,221.12 and 62,947.75
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Solution
The fourth proportional to 113,938.06, 157,221.12 and 62,947.75 is: 86,860.49
Step by Step Solution
- Step 1: Write the proportion equation
113,938.06 : 157,221.12 = 62,947.75 : x - Step 2: Convert to fraction form
113,938.06/157,221.12 = 62,947.75/x - Step 3: Cross multiply
113,938.06x = 157,221.12 × 62,947.75 - Step 4: Simplify right side
113,938.06x = 9,896,715,441.74 - Step 5: Solve for x
x = 9,896,715,441.74/113,938.06 - Step 6: Final answer
x = 86,860.49
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.