Home / 80,151.12-120,225.60-38,471.76

Finding the Fourth Proportional to 80,151.12, 120,225.60 and 38,471.76

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Solution

The fourth proportional to 80,151.12, 120,225.60 and 38,471.76 is: 57,707.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,151.12 : 120,225.60 = 38,471.76 : x
  2. Step 2: Convert to fraction form
    80,151.12/120,225.60 = 38,471.76/x
  3. Step 3: Cross multiply
    80,151.12x = 120,225.60 × 38,471.76
  4. Step 4: Simplify right side
    80,151.12x = 4,625,290,429.06
  5. Step 5: Solve for x
    x = 4,625,290,429.06/80,151.12
  6. Step 6: Final answer
    x = 57,707.12

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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.