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Finding the Fourth Proportional to 134.11, 199.87 and 131.41

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Solution

The fourth proportional to 134.11, 199.87 and 131.41 is: 195.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    134.11 : 199.87 = 131.41 : x
  2. Step 2: Convert to fraction form
    134.11/199.87 = 131.41/x
  3. Step 3: Cross multiply
    134.11x = 199.87 × 131.41
  4. Step 4: Simplify right side
    134.11x = 26,264.92
  5. Step 5: Solve for x
    x = 26,264.92/134.11
  6. Step 6: Final answer
    x = 195.85

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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.