Finding the Fourth Proportional to 129,364.26, 194,078.67 and 45,125.62
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Solution
The fourth proportional to 129,364.26, 194,078.67 and 45,125.62 is: 67,699.69
Step by Step Solution
- Step 1: Write the proportion equation
129,364.26 : 194,078.67 = 45,125.62 : x - Step 2: Convert to fraction form
129,364.26/194,078.67 = 45,125.62/x - Step 3: Cross multiply
129,364.26x = 194,078.67 × 45,125.62 - Step 4: Simplify right side
129,364.26x = 8,757,920,312.53 - Step 5: Solve for x
x = 8,757,920,312.53/129,364.26 - Step 6: Final answer
x = 67,699.69
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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.