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Finding the Fourth Proportional to 107.26, 160.92 and 55.92

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Solution

The fourth proportional to 107.26, 160.92 and 55.92 is: 83.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    107.26 : 160.92 = 55.92 : x
  2. Step 2: Convert to fraction form
    107.26/160.92 = 55.92/x
  3. Step 3: Cross multiply
    107.26x = 160.92 × 55.92
  4. Step 4: Simplify right side
    107.26x = 8,998.65
  5. Step 5: Solve for x
    x = 8,998.65/107.26
  6. Step 6: Final answer
    x = 83.90

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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.