Finding the Fourth Proportional to 131,920.38, 197,878.80 and 32,080.28
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Solution
The fourth proportional to 131,920.38, 197,878.80 and 32,080.28 is: 48,119.99
Step by Step Solution
- Step 1: Write the proportion equation
131,920.38 : 197,878.80 = 32,080.28 : x - Step 2: Convert to fraction form
131,920.38/197,878.80 = 32,080.28/x - Step 3: Cross multiply
131,920.38x = 197,878.80 × 32,080.28 - Step 4: Simplify right side
131,920.38x = 6,348,007,310.06 - Step 5: Solve for x
x = 6,348,007,310.06/131,920.38 - Step 6: Final answer
x = 48,119.99
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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.