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Finding the Fourth Proportional to 136.83, 205.57 and 133.94

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Solution

The fourth proportional to 136.83, 205.57 and 133.94 is: 201.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    136.83 : 205.57 = 133.94 : x
  2. Step 2: Convert to fraction form
    136.83/205.57 = 133.94/x
  3. Step 3: Cross multiply
    136.83x = 205.57 × 133.94
  4. Step 4: Simplify right side
    136.83x = 27,534.05
  5. Step 5: Solve for x
    x = 27,534.05/136.83
  6. Step 6: Final answer
    x = 201.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.