Finding the Fourth Proportional to 113,459.49, 156,572.79 and 62,471.19
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Solution
The fourth proportional to 113,459.49, 156,572.79 and 62,471.19 is: 86,209.52
Step by Step Solution
- Step 1: Write the proportion equation
113,459.49 : 156,572.79 = 62,471.19 : x - Step 2: Convert to fraction form
113,459.49/156,572.79 = 62,471.19/x - Step 3: Cross multiply
113,459.49x = 156,572.79 × 62,471.19 - Step 4: Simplify right side
113,459.49x = 9,781,288,512.92 - Step 5: Solve for x
x = 9,781,288,512.92/113,459.49 - Step 6: Final answer
x = 86,209.52
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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.