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Finding the Fourth Proportional to 140.24, 192.52 and 135.38

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Solution

The fourth proportional to 140.24, 192.52 and 135.38 is: 185.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    140.24 : 192.52 = 135.38 : x
  2. Step 2: Convert to fraction form
    140.24/192.52 = 135.38/x
  3. Step 3: Cross multiply
    140.24x = 192.52 × 135.38
  4. Step 4: Simplify right side
    140.24x = 26,063.36
  5. Step 5: Solve for x
    x = 26,063.36/140.24
  6. Step 6: Final answer
    x = 185.85

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.