Home / 120,805.32-181,229.13-45,931.95

Finding the Fourth Proportional to 120,805.32, 181,229.13 and 45,931.95

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Solution

The fourth proportional to 120,805.32, 181,229.13 and 45,931.95 is: 68,905.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,805.32 : 181,229.13 = 45,931.95 : x
  2. Step 2: Convert to fraction form
    120,805.32/181,229.13 = 45,931.95/x
  3. Step 3: Cross multiply
    120,805.32x = 181,229.13 × 45,931.95
  4. Step 4: Simplify right side
    120,805.32x = 8,324,207,337.70
  5. Step 5: Solve for x
    x = 8,324,207,337.70/120,805.32
  6. Step 6: Final answer
    x = 68,905.97

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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.