Finding the Fourth Proportional to 141,702.74, 212,574.99 and 75,125.78
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Solution
The fourth proportional to 141,702.74, 212,574.99 and 75,125.78 is: 112,699.74
Step by Step Solution
- Step 1: Write the proportion equation
141,702.74 : 212,574.99 = 75,125.78 : x - Step 2: Convert to fraction form
141,702.74/212,574.99 = 75,125.78/x - Step 3: Cross multiply
141,702.74x = 212,574.99 × 75,125.78 - Step 4: Simplify right side
141,702.74x = 15,969,861,932.24 - Step 5: Solve for x
x = 15,969,861,932.24/141,702.74 - Step 6: Final answer
x = 112,699.74
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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.