Finding the Fourth Proportional to 127,711.24, 176,257.14 and 77,410.12
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Solution
The fourth proportional to 127,711.24, 176,257.14 and 77,410.12 is: 106,835.44
Step by Step Solution
- Step 1: Write the proportion equation
127,711.24 : 176,257.14 = 77,410.12 : x - Step 2: Convert to fraction form
127,711.24/176,257.14 = 77,410.12/x - Step 3: Cross multiply
127,711.24x = 176,257.14 × 77,410.12 - Step 4: Simplify right side
127,711.24x = 13,644,086,358.26 - Step 5: Solve for x
x = 13,644,086,358.26/127,711.24 - Step 6: Final answer
x = 106,835.44
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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.