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Finding the Fourth Proportional to 166.73, 250.14 and 79.99

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Solution

The fourth proportional to 166.73, 250.14 and 79.99 is: 120.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    166.73 : 250.14 = 79.99 : x
  2. Step 2: Convert to fraction form
    166.73/250.14 = 79.99/x
  3. Step 3: Cross multiply
    166.73x = 250.14 × 79.99
  4. Step 4: Simplify right side
    166.73x = 20,008.30
  5. Step 5: Solve for x
    x = 20,008.30/166.73
  6. Step 6: Final answer
    x = 120.01

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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.