Home / 123,964.12-171,071.60-67,375.56

Finding the Fourth Proportional to 123,964.12, 171,071.60 and 67,375.56

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Solution

The fourth proportional to 123,964.12, 171,071.60 and 67,375.56 is: 92,978.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,964.12 : 171,071.60 = 67,375.56 : x
  2. Step 2: Convert to fraction form
    123,964.12/171,071.60 = 67,375.56/x
  3. Step 3: Cross multiply
    123,964.12x = 171,071.60 × 67,375.56
  4. Step 4: Simplify right side
    123,964.12x = 11,526,044,850.10
  5. Step 5: Solve for x
    x = 11,526,044,850.10/123,964.12
  6. Step 6: Final answer
    x = 92,978.88

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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.