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Finding the Fourth Proportional to 143,332.89, 215,092.89 and 54,587.27

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Solution

The fourth proportional to 143,332.89, 215,092.89 and 54,587.27 is: 81,916.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,332.89 : 215,092.89 = 54,587.27 : x
  2. Step 2: Convert to fraction form
    143,332.89/215,092.89 = 54,587.27/x
  3. Step 3: Cross multiply
    143,332.89x = 215,092.89 × 54,587.27
  4. Step 4: Simplify right side
    143,332.89x = 11,741,332,586.05
  5. Step 5: Solve for x
    x = 11,741,332,586.05/143,332.89
  6. Step 6: Final answer
    x = 81,916.53

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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.