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Finding the Fourth Proportional to 123.27, 184.68 and 75.07

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Solution

The fourth proportional to 123.27, 184.68 and 75.07 is: 112.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    123.27 : 184.68 = 75.07 : x
  2. Step 2: Convert to fraction form
    123.27/184.68 = 75.07/x
  3. Step 3: Cross multiply
    123.27x = 184.68 × 75.07
  4. Step 4: Simplify right side
    123.27x = 13,863.93
  5. Step 5: Solve for x
    x = 13,863.93/123.27
  6. Step 6: Final answer
    x = 112.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.