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Finding the Fourth Proportional to 123.36, 184.14 and 106.14

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Solution

The fourth proportional to 123.36, 184.14 and 106.14 is: 158.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    123.36 : 184.14 = 106.14 : x
  2. Step 2: Convert to fraction form
    123.36/184.14 = 106.14/x
  3. Step 3: Cross multiply
    123.36x = 184.14 × 106.14
  4. Step 4: Simplify right side
    123.36x = 19,544.62
  5. Step 5: Solve for x
    x = 19,544.62/123.36
  6. Step 6: Final answer
    x = 158.44

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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.