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Finding the Fourth Proportional to 127,757.75, 176,309.69 and 73,319.87

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Solution

The fourth proportional to 127,757.75, 176,309.69 and 73,319.87 is: 101,183.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,757.75 : 176,309.69 = 73,319.87 : x
  2. Step 2: Convert to fraction form
    127,757.75/176,309.69 = 73,319.87/x
  3. Step 3: Cross multiply
    127,757.75x = 176,309.69 × 73,319.87
  4. Step 4: Simplify right side
    127,757.75x = 12,927,002,302.39
  5. Step 5: Solve for x
    x = 12,927,002,302.39/127,757.75
  6. Step 6: Final answer
    x = 101,183.71

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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.