Finding the Fourth Proportional to 117,639.24, 176,414.70 and 42,740.88
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Solution
The fourth proportional to 117,639.24, 176,414.70 and 42,740.88 is: 64,095.28
Step by Step Solution
- Step 1: Write the proportion equation
117,639.24 : 176,414.70 = 42,740.88 : x - Step 2: Convert to fraction form
117,639.24/176,414.70 = 42,740.88/x - Step 3: Cross multiply
117,639.24x = 176,414.70 × 42,740.88 - Step 4: Simplify right side
117,639.24x = 7,540,119,522.94 - Step 5: Solve for x
x = 7,540,119,522.94/117,639.24 - Step 6: Final answer
x = 64,095.28
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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.