Home / 124,964.40-187,446.60-80,641.20

Finding the Fourth Proportional to 124,964.40, 187,446.60 and 80,641.20

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Solution

The fourth proportional to 124,964.40, 187,446.60 and 80,641.20 is: 120,961.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,964.40 : 187,446.60 = 80,641.20 : x
  2. Step 2: Convert to fraction form
    124,964.40/187,446.60 = 80,641.20/x
  3. Step 3: Cross multiply
    124,964.40x = 187,446.60 × 80,641.20
  4. Step 4: Simplify right side
    124,964.40x = 15,115,918,759.92
  5. Step 5: Solve for x
    x = 15,115,918,759.92/124,964.40
  6. Step 6: Final answer
    x = 120,961.80

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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.