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Finding the Fourth Proportional to 127,900.62, 176,614.29 and 80,235.90

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Solution

The fourth proportional to 127,900.62, 176,614.29 and 80,235.90 is: 110,795.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,900.62 : 176,614.29 = 80,235.90 : x
  2. Step 2: Convert to fraction form
    127,900.62/176,614.29 = 80,235.90/x
  3. Step 3: Cross multiply
    127,900.62x = 176,614.29 × 80,235.90
  4. Step 4: Simplify right side
    127,900.62x = 14,170,806,511.01
  5. Step 5: Solve for x
    x = 14,170,806,511.01/127,900.62
  6. Step 6: Final answer
    x = 110,795.45

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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.