Home / 149,122.46-205,721.19-88,658.80

Finding the Fourth Proportional to 149,122.46, 205,721.19 and 88,658.80

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Solution

The fourth proportional to 149,122.46, 205,721.19 and 88,658.80 is: 122,308.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,122.46 : 205,721.19 = 88,658.80 : x
  2. Step 2: Convert to fraction form
    149,122.46/205,721.19 = 88,658.80/x
  3. Step 3: Cross multiply
    149,122.46x = 205,721.19 × 88,658.80
  4. Step 4: Simplify right side
    149,122.46x = 18,238,993,839.97
  5. Step 5: Solve for x
    x = 18,238,993,839.97/149,122.46
  6. Step 6: Final answer
    x = 122,308.83

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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.