Home / 220,754.11-331,180.52-80,512.73

Finding the Fourth Proportional to 220,754.11, 331,180.52 and 80,512.73

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Solution

The fourth proportional to 220,754.11, 331,180.52 and 80,512.73 is: 120,787.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,754.11 : 331,180.52 = 80,512.73 : x
  2. Step 2: Convert to fraction form
    220,754.11/331,180.52 = 80,512.73/x
  3. Step 3: Cross multiply
    220,754.11x = 331,180.52 × 80,512.73
  4. Step 4: Simplify right side
    220,754.11x = 26,664,249,513.70
  5. Step 5: Solve for x
    x = 26,664,249,513.70/220,754.11
  6. Step 6: Final answer
    x = 120,787.10

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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.