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Finding the Fourth Proportional to 116.22, 173.11 and 108.73

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Solution

The fourth proportional to 116.22, 173.11 and 108.73 is: 161.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.22 : 173.11 = 108.73 : x
  2. Step 2: Convert to fraction form
    116.22/173.11 = 108.73/x
  3. Step 3: Cross multiply
    116.22x = 173.11 × 108.73
  4. Step 4: Simplify right side
    116.22x = 18,822.25
  5. Step 5: Solve for x
    x = 18,822.25/116.22
  6. Step 6: Final answer
    x = 161.95

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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.