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Finding the Fourth Proportional to 112.60, 169.84 and 110.92

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Solution

The fourth proportional to 112.60, 169.84 and 110.92 is: 167.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    112.60 : 169.84 = 110.92 : x
  2. Step 2: Convert to fraction form
    112.60/169.84 = 110.92/x
  3. Step 3: Cross multiply
    112.60x = 169.84 × 110.92
  4. Step 4: Simplify right side
    112.60x = 18,838.65
  5. Step 5: Solve for x
    x = 18,838.65/112.60
  6. Step 6: Final answer
    x = 167.31

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.