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Finding the Fourth Proportional to 80,099.97, 120,147.25 and 38,000.22

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Solution

The fourth proportional to 80,099.97, 120,147.25 and 38,000.22 is: 56,999.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,099.97 : 120,147.25 = 38,000.22 : x
  2. Step 2: Convert to fraction form
    80,099.97/120,147.25 = 38,000.22/x
  3. Step 3: Cross multiply
    80,099.97x = 120,147.25 × 38,000.22
  4. Step 4: Simplify right side
    80,099.97x = 4,565,621,932.40
  5. Step 5: Solve for x
    x = 4,565,621,932.40/80,099.97
  6. Step 6: Final answer
    x = 56,999.05

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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.