Finding the Fourth Proportional to 173,815.12, 239,781.36 and 102,191.68
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Solution
The fourth proportional to 173,815.12, 239,781.36 and 102,191.68 is: 140,975.42
Step by Step Solution
- Step 1: Write the proportion equation
173,815.12 : 239,781.36 = 102,191.68 : x - Step 2: Convert to fraction form
173,815.12/239,781.36 = 102,191.68/x - Step 3: Cross multiply
173,815.12x = 239,781.36 × 102,191.68 - Step 4: Simplify right side
173,815.12x = 24,503,660,011.08 - Step 5: Solve for x
x = 24,503,660,011.08/173,815.12 - Step 6: Final answer
x = 140,975.42
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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.