Finding the Fourth Proportional to 176,604.69, 243,654.84 and 100,115.58
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Solution
The fourth proportional to 176,604.69, 243,654.84 and 100,115.58 is: 138,125.70
Step by Step Solution
- Step 1: Write the proportion equation
176,604.69 : 243,654.84 = 100,115.58 : x - Step 2: Convert to fraction form
176,604.69/243,654.84 = 100,115.58/x - Step 3: Cross multiply
176,604.69x = 243,654.84 × 100,115.58 - Step 4: Simplify right side
176,604.69x = 24,393,645,626.41 - Step 5: Solve for x
x = 24,393,645,626.41/176,604.69 - Step 6: Final answer
x = 138,125.70
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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.