Finding the Fourth Proportional to 129,151.35, 193,672.35 and 40,381.02
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Solution
The fourth proportional to 129,151.35, 193,672.35 and 40,381.02 is: 60,554.44
Step by Step Solution
- Step 1: Write the proportion equation
129,151.35 : 193,672.35 = 40,381.02 : x - Step 2: Convert to fraction form
129,151.35/193,672.35 = 40,381.02/x - Step 3: Cross multiply
129,151.35x = 193,672.35 × 40,381.02 - Step 4: Simplify right side
129,151.35x = 7,820,687,038.80 - Step 5: Solve for x
x = 7,820,687,038.80/129,151.35 - Step 6: Final answer
x = 60,554.44
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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.