Home / 123,399.20-184,839.60-67,930.40

Finding the Fourth Proportional to 123,399.20, 184,839.60 and 67,930.40

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Solution

The fourth proportional to 123,399.20, 184,839.60 and 67,930.40 is: 101,752.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,399.20 : 184,839.60 = 67,930.40 : x
  2. Step 2: Convert to fraction form
    123,399.20/184,839.60 = 67,930.40/x
  3. Step 3: Cross multiply
    123,399.20x = 184,839.60 × 67,930.40
  4. Step 4: Simplify right side
    123,399.20x = 12,556,227,963.84
  5. Step 5: Solve for x
    x = 12,556,227,963.84/123,399.20
  6. Step 6: Final answer
    x = 101,752.91

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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.