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Finding the Fourth Proportional to 143,737.38, 215,601.21 and 43,893.54

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Solution

The fourth proportional to 143,737.38, 215,601.21 and 43,893.54 is: 65,838.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,737.38 : 215,601.21 = 43,893.54 : x
  2. Step 2: Convert to fraction form
    143,737.38/215,601.21 = 43,893.54/x
  3. Step 3: Cross multiply
    143,737.38x = 215,601.21 × 43,893.54
  4. Step 4: Simplify right side
    143,737.38x = 9,463,500,335.18
  5. Step 5: Solve for x
    x = 9,463,500,335.18/143,737.38
  6. Step 6: Final answer
    x = 65,838.83

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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.