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Finding the Fourth Proportional to 166.75, 230.13 and 104.58

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Solution

The fourth proportional to 166.75, 230.13 and 104.58 is: 144.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    166.75 : 230.13 = 104.58 : x
  2. Step 2: Convert to fraction form
    166.75/230.13 = 104.58/x
  3. Step 3: Cross multiply
    166.75x = 230.13 × 104.58
  4. Step 4: Simplify right side
    166.75x = 24,067.94
  5. Step 5: Solve for x
    x = 24,067.94/166.75
  6. Step 6: Final answer
    x = 144.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.