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Finding the Fourth Proportional to 166.08, 229.11 and 113.67

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Solution

The fourth proportional to 166.08, 229.11 and 113.67 is: 156.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    166.08 : 229.11 = 113.67 : x
  2. Step 2: Convert to fraction form
    166.08/229.11 = 113.67/x
  3. Step 3: Cross multiply
    166.08x = 229.11 × 113.67
  4. Step 4: Simplify right side
    166.08x = 26,042.93
  5. Step 5: Solve for x
    x = 26,042.93/166.08
  6. Step 6: Final answer
    x = 156.81

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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.