Finding the Fourth Proportional to 127,882.10, 176,431.02 and 74,137.52
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Solution
The fourth proportional to 127,882.10, 176,431.02 and 74,137.52 is: 102,282.95
Step by Step Solution
- Step 1: Write the proportion equation
127,882.10 : 176,431.02 = 74,137.52 : x - Step 2: Convert to fraction form
127,882.10/176,431.02 = 74,137.52/x - Step 3: Cross multiply
127,882.10x = 176,431.02 × 74,137.52 - Step 4: Simplify right side
127,882.10x = 13,080,158,273.87 - Step 5: Solve for x
x = 13,080,158,273.87/127,882.10 - Step 6: Final answer
x = 102,282.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.