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Finding the Fourth Proportional to 80,103.20, 120,161.21 and 23,939.21

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Solution

The fourth proportional to 80,103.20, 120,161.21 and 23,939.21 is: 35,910.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,103.20 : 120,161.21 = 23,939.21 : x
  2. Step 2: Convert to fraction form
    80,103.20/120,161.21 = 23,939.21/x
  3. Step 3: Cross multiply
    80,103.20x = 120,161.21 × 23,939.21
  4. Step 4: Simplify right side
    80,103.20x = 2,876,564,620.75
  5. Step 5: Solve for x
    x = 2,876,564,620.75/80,103.20
  6. Step 6: Final answer
    x = 35,910.74

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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.