Finding the Fourth Proportional to 129,248.28, 193,872.48 and 40,508.70
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Solution
The fourth proportional to 129,248.28, 193,872.48 and 40,508.70 is: 60,763.07
Step by Step Solution
- Step 1: Write the proportion equation
129,248.28 : 193,872.48 = 40,508.70 : x - Step 2: Convert to fraction form
129,248.28/193,872.48 = 40,508.70/x - Step 3: Cross multiply
129,248.28x = 193,872.48 × 40,508.70 - Step 4: Simplify right side
129,248.28x = 7,853,522,130.58 - Step 5: Solve for x
x = 7,853,522,130.58/129,248.28 - Step 6: Final answer
x = 60,763.07
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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.