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Finding the Fourth Proportional to 133.95, 201.39 and 124.54

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Solution

The fourth proportional to 133.95, 201.39 and 124.54 is: 187.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    133.95 : 201.39 = 124.54 : x
  2. Step 2: Convert to fraction form
    133.95/201.39 = 124.54/x
  3. Step 3: Cross multiply
    133.95x = 201.39 × 124.54
  4. Step 4: Simplify right side
    133.95x = 25,080.14
  5. Step 5: Solve for x
    x = 25,080.14/133.95
  6. Step 6: Final answer
    x = 187.23

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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.