Home / 123,974.10-185,961.15-74,207.70

Finding the Fourth Proportional to 123,974.10, 185,961.15 and 74,207.70

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Solution

The fourth proportional to 123,974.10, 185,961.15 and 74,207.70 is: 111,311.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,974.10 : 185,961.15 = 74,207.70 : x
  2. Step 2: Convert to fraction form
    123,974.10/185,961.15 = 74,207.70/x
  3. Step 3: Cross multiply
    123,974.10x = 185,961.15 × 74,207.70
  4. Step 4: Simplify right side
    123,974.10x = 13,799,749,230.86
  5. Step 5: Solve for x
    x = 13,799,749,230.86/123,974.10
  6. Step 6: Final answer
    x = 111,311.55

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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.