Home / 82,138.06-123,219.24-25,965.42

Finding the Fourth Proportional to 82,138.06, 123,219.24 and 25,965.42

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Solution

The fourth proportional to 82,138.06, 123,219.24 and 25,965.42 is: 38,951.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,138.06 : 123,219.24 = 25,965.42 : x
  2. Step 2: Convert to fraction form
    82,138.06/123,219.24 = 25,965.42/x
  3. Step 3: Cross multiply
    82,138.06x = 123,219.24 × 25,965.42
  4. Step 4: Simplify right side
    82,138.06x = 3,199,438,702.58
  5. Step 5: Solve for x
    x = 3,199,438,702.58/82,138.06
  6. Step 6: Final answer
    x = 38,951.96

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1.5x scale

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.