Home / 120,834.20-181,251.30-54,306.20

Finding the Fourth Proportional to 120,834.20, 181,251.30 and 54,306.20

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Solution

The fourth proportional to 120,834.20, 181,251.30 and 54,306.20 is: 81,459.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,834.20 : 181,251.30 = 54,306.20 : x
  2. Step 2: Convert to fraction form
    120,834.20/181,251.30 = 54,306.20/x
  3. Step 3: Cross multiply
    120,834.20x = 181,251.30 × 54,306.20
  4. Step 4: Simplify right side
    120,834.20x = 9,843,069,348.06
  5. Step 5: Solve for x
    x = 9,843,069,348.06/120,834.20
  6. Step 6: Final answer
    x = 81,459.30

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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.