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Finding the Fourth Proportional to 166.34, 229.55 and 92.66

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Solution

The fourth proportional to 166.34, 229.55 and 92.66 is: 127.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    166.34 : 229.55 = 92.66 : x
  2. Step 2: Convert to fraction form
    166.34/229.55 = 92.66/x
  3. Step 3: Cross multiply
    166.34x = 229.55 × 92.66
  4. Step 4: Simplify right side
    166.34x = 21,270.10
  5. Step 5: Solve for x
    x = 21,270.10/166.34
  6. Step 6: Final answer
    x = 127.87

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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.