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Finding the Fourth Proportional to 166.85, 250.20 and 64.14

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Solution

The fourth proportional to 166.85, 250.20 and 64.14 is: 96.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    166.85 : 250.20 = 64.14 : x
  2. Step 2: Convert to fraction form
    166.85/250.20 = 64.14/x
  3. Step 3: Cross multiply
    166.85x = 250.20 × 64.14
  4. Step 4: Simplify right side
    166.85x = 16,047.83
  5. Step 5: Solve for x
    x = 16,047.83/166.85
  6. Step 6: Final answer
    x = 96.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.