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Finding the Fourth Proportional to 166.08, 229.21 and 96.12

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Solution

The fourth proportional to 166.08, 229.21 and 96.12 is: 132.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    166.08 : 229.21 = 96.12 : x
  2. Step 2: Convert to fraction form
    166.08/229.21 = 96.12/x
  3. Step 3: Cross multiply
    166.08x = 229.21 × 96.12
  4. Step 4: Simplify right side
    166.08x = 22,031.67
  5. Step 5: Solve for x
    x = 22,031.67/166.08
  6. Step 6: Final answer
    x = 132.66

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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.