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Finding the Fourth Proportional to 106.28, 159.31 and 41.33

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Solution

The fourth proportional to 106.28, 159.31 and 41.33 is: 61.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    106.28 : 159.31 = 41.33 : x
  2. Step 2: Convert to fraction form
    106.28/159.31 = 41.33/x
  3. Step 3: Cross multiply
    106.28x = 159.31 × 41.33
  4. Step 4: Simplify right side
    106.28x = 6,584.73
  5. Step 5: Solve for x
    x = 6,584.73/106.28
  6. Step 6: Final answer
    x = 61.96

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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.