Home / 120,306.83-166,025.39-75,003.12

Finding the Fourth Proportional to 120,306.83, 166,025.39 and 75,003.12

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Solution

The fourth proportional to 120,306.83, 166,025.39 and 75,003.12 is: 103,505.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,306.83 : 166,025.39 = 75,003.12 : x
  2. Step 2: Convert to fraction form
    120,306.83/166,025.39 = 75,003.12/x
  3. Step 3: Cross multiply
    120,306.83x = 166,025.39 × 75,003.12
  4. Step 4: Simplify right side
    120,306.83x = 12,452,421,874.20
  5. Step 5: Solve for x
    x = 12,452,421,874.20/120,306.83
  6. Step 6: Final answer
    x = 103,505.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.