Finding the Fourth Proportional to 134,711.25, 185,909.36 and 74,294.75
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Solution
The fourth proportional to 134,711.25, 185,909.36 and 74,294.75 is: 102,531.07
Step by Step Solution
- Step 1: Write the proportion equation
134,711.25 : 185,909.36 = 74,294.75 : x - Step 2: Convert to fraction form
134,711.25/185,909.36 = 74,294.75/x - Step 3: Cross multiply
134,711.25x = 185,909.36 × 74,294.75 - Step 4: Simplify right side
134,711.25x = 13,812,088,122.84 - Step 5: Solve for x
x = 13,812,088,122.84/134,711.25 - Step 6: Final answer
x = 102,531.07
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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.