Finding the Fourth Proportional to 113,892.36, 170,839.16 and 74,697.68
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Solution
The fourth proportional to 113,892.36, 170,839.16 and 74,697.68 is: 112,046.92
Step by Step Solution
- Step 1: Write the proportion equation
113,892.36 : 170,839.16 = 74,697.68 : x - Step 2: Convert to fraction form
113,892.36/170,839.16 = 74,697.68/x - Step 3: Cross multiply
113,892.36x = 170,839.16 × 74,697.68 - Step 4: Simplify right side
113,892.36x = 12,761,287,677.46 - Step 5: Solve for x
x = 12,761,287,677.46/113,892.36 - Step 6: Final answer
x = 112,046.92
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.