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Finding the Fourth Proportional to 144.89, 199.92 and 134.57

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Solution

The fourth proportional to 144.89, 199.92 and 134.57 is: 185.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    144.89 : 199.92 = 134.57 : x
  2. Step 2: Convert to fraction form
    144.89/199.92 = 134.57/x
  3. Step 3: Cross multiply
    144.89x = 199.92 × 134.57
  4. Step 4: Simplify right side
    144.89x = 26,903.23
  5. Step 5: Solve for x
    x = 26,903.23/144.89
  6. Step 6: Final answer
    x = 185.68

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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.