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Finding the Fourth Proportional to 107.26, 160.66 and 63.79

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Solution

The fourth proportional to 107.26, 160.66 and 63.79 is: 95.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    107.26 : 160.66 = 63.79 : x
  2. Step 2: Convert to fraction form
    107.26/160.66 = 63.79/x
  3. Step 3: Cross multiply
    107.26x = 160.66 × 63.79
  4. Step 4: Simplify right side
    107.26x = 10,248.50
  5. Step 5: Solve for x
    x = 10,248.50/107.26
  6. Step 6: Final answer
    x = 95.55

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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.