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Finding the Fourth Proportional to 134.84, 201.19 and 131.87

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Solution

The fourth proportional to 134.84, 201.19 and 131.87 is: 196.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    134.84 : 201.19 = 131.87 : x
  2. Step 2: Convert to fraction form
    134.84/201.19 = 131.87/x
  3. Step 3: Cross multiply
    134.84x = 201.19 × 131.87
  4. Step 4: Simplify right side
    134.84x = 26,530.27
  5. Step 5: Solve for x
    x = 26,530.27/134.84
  6. Step 6: Final answer
    x = 196.75

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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.