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Finding the Fourth Proportional to 105.50, 158.22 and 44.65

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Solution

The fourth proportional to 105.50, 158.22 and 44.65 is: 66.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    105.50 : 158.22 = 44.65 : x
  2. Step 2: Convert to fraction form
    105.50/158.22 = 44.65/x
  3. Step 3: Cross multiply
    105.50x = 158.22 × 44.65
  4. Step 4: Simplify right side
    105.50x = 7,063.73
  5. Step 5: Solve for x
    x = 7,063.73/105.50
  6. Step 6: Final answer
    x = 66.95

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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.