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Finding the Fourth Proportional to 132.06, 196.60 and 131.38

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Solution

The fourth proportional to 132.06, 196.60 and 131.38 is: 195.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    132.06 : 196.60 = 131.38 : x
  2. Step 2: Convert to fraction form
    132.06/196.60 = 131.38/x
  3. Step 3: Cross multiply
    132.06x = 196.60 × 131.38
  4. Step 4: Simplify right side
    132.06x = 25,829.31
  5. Step 5: Solve for x
    x = 25,829.31/132.06
  6. Step 6: Final answer
    x = 195.59

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.