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Finding the Fourth Proportional to 125.10, 187.14 and 108.17

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Solution

The fourth proportional to 125.10, 187.14 and 108.17 is: 161.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    125.10 : 187.14 = 108.17 : x
  2. Step 2: Convert to fraction form
    125.10/187.14 = 108.17/x
  3. Step 3: Cross multiply
    125.10x = 187.14 × 108.17
  4. Step 4: Simplify right side
    125.10x = 20,243.11
  5. Step 5: Solve for x
    x = 20,243.11/125.10
  6. Step 6: Final answer
    x = 161.82

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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.