Home / 132,320.20-198,480.30-82,237.90

Finding the Fourth Proportional to 132,320.20, 198,480.30 and 82,237.90

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Solution

The fourth proportional to 132,320.20, 198,480.30 and 82,237.90 is: 123,356.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,320.20 : 198,480.30 = 82,237.90 : x
  2. Step 2: Convert to fraction form
    132,320.20/198,480.30 = 82,237.90/x
  3. Step 3: Cross multiply
    132,320.20x = 198,480.30 × 82,237.90
  4. Step 4: Simplify right side
    132,320.20x = 16,322,603,063.37
  5. Step 5: Solve for x
    x = 16,322,603,063.37/132,320.20
  6. Step 6: Final answer
    x = 123,356.85

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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.