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Finding the Fourth Proportional to 166.77, 250.03 and 80.12

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Solution

The fourth proportional to 166.77, 250.03 and 80.12 is: 120.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    166.77 : 250.03 = 80.12 : x
  2. Step 2: Convert to fraction form
    166.77/250.03 = 80.12/x
  3. Step 3: Cross multiply
    166.77x = 250.03 × 80.12
  4. Step 4: Simplify right side
    166.77x = 20,030.95
  5. Step 5: Solve for x
    x = 20,030.95/166.77
  6. Step 6: Final answer
    x = 120.11

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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.