Home / 156,972.55-235,456.71-38,644.87

Finding the Fourth Proportional to 156,972.55, 235,456.71 and 38,644.87

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Solution

The fourth proportional to 156,972.55, 235,456.71 and 38,644.87 is: 57,966.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,972.55 : 235,456.71 = 38,644.87 : x
  2. Step 2: Convert to fraction form
    156,972.55/235,456.71 = 38,644.87/x
  3. Step 3: Cross multiply
    156,972.55x = 235,456.71 × 38,644.87
  4. Step 4: Simplify right side
    156,972.55x = 9,099,193,948.58
  5. Step 5: Solve for x
    x = 9,099,193,948.58/156,972.55
  6. Step 6: Final answer
    x = 57,966.78

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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.