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Finding the Fourth Proportional to 125,227.99, 187,863.87 and 55,105.48

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Solution

The fourth proportional to 125,227.99, 187,863.87 and 55,105.48 is: 82,667.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,227.99 : 187,863.87 = 55,105.48 : x
  2. Step 2: Convert to fraction form
    125,227.99/187,863.87 = 55,105.48/x
  3. Step 3: Cross multiply
    125,227.99x = 187,863.87 × 55,105.48
  4. Step 4: Simplify right side
    125,227.99x = 10,352,328,731.01
  5. Step 5: Solve for x
    x = 10,352,328,731.01/125,227.99
  6. Step 6: Final answer
    x = 82,667.85

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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.