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Finding the Fourth Proportional to 166.53, 229.83 and 92.86

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Solution

The fourth proportional to 166.53, 229.83 and 92.86 is: 128.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    166.53 : 229.83 = 92.86 : x
  2. Step 2: Convert to fraction form
    166.53/229.83 = 92.86/x
  3. Step 3: Cross multiply
    166.53x = 229.83 × 92.86
  4. Step 4: Simplify right side
    166.53x = 21,341.44
  5. Step 5: Solve for x
    x = 21,341.44/166.53
  6. Step 6: Final answer
    x = 128.15

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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.