Finding the Fourth Proportional to 129,414.08, 194,091.96 and 50,487.68
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Solution
The fourth proportional to 129,414.08, 194,091.96 and 50,487.68 is: 75,720.14
Step by Step Solution
- Step 1: Write the proportion equation
129,414.08 : 194,091.96 = 50,487.68 : x - Step 2: Convert to fraction form
129,414.08/194,091.96 = 50,487.68/x - Step 3: Cross multiply
129,414.08x = 194,091.96 × 50,487.68 - Step 4: Simplify right side
129,414.08x = 9,799,252,767.05 - Step 5: Solve for x
x = 9,799,252,767.05/129,414.08 - Step 6: Final answer
x = 75,720.14
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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.