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Finding the Fourth Proportional to 133.68, 199.04 and 131.73

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Solution

The fourth proportional to 133.68, 199.04 and 131.73 is: 196.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    133.68 : 199.04 = 131.73 : x
  2. Step 2: Convert to fraction form
    133.68/199.04 = 131.73/x
  3. Step 3: Cross multiply
    133.68x = 199.04 × 131.73
  4. Step 4: Simplify right side
    133.68x = 26,219.54
  5. Step 5: Solve for x
    x = 26,219.54/133.68
  6. Step 6: Final answer
    x = 196.14

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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.