Home / 123,738.54-170,759.19-67,149.91

Finding the Fourth Proportional to 123,738.54, 170,759.19 and 67,149.91

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Solution

The fourth proportional to 123,738.54, 170,759.19 and 67,149.91 is: 92,666.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,738.54 : 170,759.19 = 67,149.91 : x
  2. Step 2: Convert to fraction form
    123,738.54/170,759.19 = 67,149.91/x
  3. Step 3: Cross multiply
    123,738.54x = 170,759.19 × 67,149.91
  4. Step 4: Simplify right side
    123,738.54x = 11,466,464,240.17
  5. Step 5: Solve for x
    x = 11,466,464,240.17/123,738.54
  6. Step 6: Final answer
    x = 92,666.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.