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Finding the Fourth Proportional to 143,251.28, 214,876.92 and 54,484.28

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Solution

The fourth proportional to 143,251.28, 214,876.92 and 54,484.28 is: 81,726.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,251.28 : 214,876.92 = 54,484.28 : x
  2. Step 2: Convert to fraction form
    143,251.28/214,876.92 = 54,484.28/x
  3. Step 3: Cross multiply
    143,251.28x = 214,876.92 × 54,484.28
  4. Step 4: Simplify right side
    143,251.28x = 11,707,414,274.82
  5. Step 5: Solve for x
    x = 11,707,414,274.82/143,251.28
  6. Step 6: Final answer
    x = 81,726.42

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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.