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Finding the Fourth Proportional to 125.97, 187.91 and 123.23

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Solution

The fourth proportional to 125.97, 187.91 and 123.23 is: 183.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    125.97 : 187.91 = 123.23 : x
  2. Step 2: Convert to fraction form
    125.97/187.91 = 123.23/x
  3. Step 3: Cross multiply
    125.97x = 187.91 × 123.23
  4. Step 4: Simplify right side
    125.97x = 23,154.59
  5. Step 5: Solve for x
    x = 23,154.59/125.97
  6. Step 6: Final answer
    x = 183.81

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.