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Finding the Fourth Proportional to 136.02, 203.97 and 82.02

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Solution

The fourth proportional to 136.02, 203.97 and 82.02 is: 122.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    136.02 : 203.97 = 82.02 : x
  2. Step 2: Convert to fraction form
    136.02/203.97 = 82.02/x
  3. Step 3: Cross multiply
    136.02x = 203.97 × 82.02
  4. Step 4: Simplify right side
    136.02x = 16,729.62
  5. Step 5: Solve for x
    x = 16,729.62/136.02
  6. Step 6: Final answer
    x = 122.99

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