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Finding the Fourth Proportional to 136.22, 189.02 and 132.44

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Solution

The fourth proportional to 136.22, 189.02 and 132.44 is: 183.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    136.22 : 189.02 = 132.44 : x
  2. Step 2: Convert to fraction form
    136.22/189.02 = 132.44/x
  3. Step 3: Cross multiply
    136.22x = 189.02 × 132.44
  4. Step 4: Simplify right side
    136.22x = 25,033.81
  5. Step 5: Solve for x
    x = 25,033.81/136.22
  6. Step 6: Final answer
    x = 183.77

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.