Finding the Fourth Proportional to 159,909.19, 239,864.69 and 66,414.94
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Solution
The fourth proportional to 159,909.19, 239,864.69 and 66,414.94 is: 99,622.78
Step by Step Solution
- Step 1: Write the proportion equation
159,909.19 : 239,864.69 = 66,414.94 : x - Step 2: Convert to fraction form
159,909.19/239,864.69 = 66,414.94/x - Step 3: Cross multiply
159,909.19x = 239,864.69 × 66,414.94 - Step 4: Simplify right side
159,909.19x = 15,930,598,560.84 - Step 5: Solve for x
x = 15,930,598,560.84/159,909.19 - Step 6: Final answer
x = 99,622.78
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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.