Finding the Fourth Proportional to 132,385.10, 182,691.47 and 71,955.75
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Solution
The fourth proportional to 132,385.10, 182,691.47 and 71,955.75 is: 99,298.95
Step by Step Solution
- Step 1: Write the proportion equation
132,385.10 : 182,691.47 = 71,955.75 : x - Step 2: Convert to fraction form
132,385.10/182,691.47 = 71,955.75/x - Step 3: Cross multiply
132,385.10x = 182,691.47 × 71,955.75 - Step 4: Simplify right side
132,385.10x = 13,145,701,382.67 - Step 5: Solve for x
x = 13,145,701,382.67/132,385.10 - Step 6: Final answer
x = 99,298.95
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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.