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Finding the Fourth Proportional to 159,241.53, 219,747.83 and 87,614.85

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Solution

The fourth proportional to 159,241.53, 219,747.83 and 87,614.85 is: 120,905.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,241.53 : 219,747.83 = 87,614.85 : x
  2. Step 2: Convert to fraction form
    159,241.53/219,747.83 = 87,614.85/x
  3. Step 3: Cross multiply
    159,241.53x = 219,747.83 × 87,614.85
  4. Step 4: Simplify right side
    159,241.53x = 19,253,172,725.20
  5. Step 5: Solve for x
    x = 19,253,172,725.20/159,241.53
  6. Step 6: Final answer
    x = 120,905.47

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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.