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Finding the Fourth Proportional to 134.52, 201.61 and 73.77

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Solution

The fourth proportional to 134.52, 201.61 and 73.77 is: 110.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    134.52 : 201.61 = 73.77 : x
  2. Step 2: Convert to fraction form
    134.52/201.61 = 73.77/x
  3. Step 3: Cross multiply
    134.52x = 201.61 × 73.77
  4. Step 4: Simplify right side
    134.52x = 14,872.77
  5. Step 5: Solve for x
    x = 14,872.77/134.52
  6. Step 6: Final answer
    x = 110.56

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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.