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Finding the Fourth Proportional to 114.73, 159.17 and 108.79

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Solution

The fourth proportional to 114.73, 159.17 and 108.79 is: 150.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    114.73 : 159.17 = 108.79 : x
  2. Step 2: Convert to fraction form
    114.73/159.17 = 108.79/x
  3. Step 3: Cross multiply
    114.73x = 159.17 × 108.79
  4. Step 4: Simplify right side
    114.73x = 17,316.10
  5. Step 5: Solve for x
    x = 17,316.10/114.73
  6. Step 6: Final answer
    x = 150.93

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.