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Finding the Fourth Proportional to 134.09, 201.33 and 76.37

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Solution

The fourth proportional to 134.09, 201.33 and 76.37 is: 114.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    134.09 : 201.33 = 76.37 : x
  2. Step 2: Convert to fraction form
    134.09/201.33 = 76.37/x
  3. Step 3: Cross multiply
    134.09x = 201.33 × 76.37
  4. Step 4: Simplify right side
    134.09x = 15,374.57
  5. Step 5: Solve for x
    x = 15,374.57/134.09
  6. Step 6: Final answer
    x = 114.66

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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.