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Finding the Fourth Proportional to 125.97, 190.11 and 122.73

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Solution

The fourth proportional to 125.97, 190.11 and 122.73 is: 185.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    125.97 : 190.11 = 122.73 : x
  2. Step 2: Convert to fraction form
    125.97/190.11 = 122.73/x
  3. Step 3: Cross multiply
    125.97x = 190.11 × 122.73
  4. Step 4: Simplify right side
    125.97x = 23,332.20
  5. Step 5: Solve for x
    x = 23,332.20/125.97
  6. Step 6: Final answer
    x = 185.22

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.