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Finding the Fourth Proportional to 134.73, 185.81 and 88.09

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Solution

The fourth proportional to 134.73, 185.81 and 88.09 is: 121.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    134.73 : 185.81 = 88.09 : x
  2. Step 2: Convert to fraction form
    134.73/185.81 = 88.09/x
  3. Step 3: Cross multiply
    134.73x = 185.81 × 88.09
  4. Step 4: Simplify right side
    134.73x = 16,367.10
  5. Step 5: Solve for x
    x = 16,367.10/134.73
  6. Step 6: Final answer
    x = 121.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.