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Finding the Fourth Proportional to 136.11, 202.65 and 134.49

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Solution

The fourth proportional to 136.11, 202.65 and 134.49 is: 200.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    136.11 : 202.65 = 134.49 : x
  2. Step 2: Convert to fraction form
    136.11/202.65 = 134.49/x
  3. Step 3: Cross multiply
    136.11x = 202.65 × 134.49
  4. Step 4: Simplify right side
    136.11x = 27,254.40
  5. Step 5: Solve for x
    x = 27,254.40/136.11
  6. Step 6: Final answer
    x = 200.24

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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.