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Finding the Fourth Proportional to 140.06, 193.69 and 133.62

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Solution

The fourth proportional to 140.06, 193.69 and 133.62 is: 184.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    140.06 : 193.69 = 133.62 : x
  2. Step 2: Convert to fraction form
    140.06/193.69 = 133.62/x
  3. Step 3: Cross multiply
    140.06x = 193.69 × 133.62
  4. Step 4: Simplify right side
    140.06x = 25,880.30
  5. Step 5: Solve for x
    x = 25,880.30/140.06
  6. Step 6: Final answer
    x = 184.78

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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.