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Finding the Fourth Proportional to 135.54, 188.34 and 133.82

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Solution

The fourth proportional to 135.54, 188.34 and 133.82 is: 185.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    135.54 : 188.34 = 133.82 : x
  2. Step 2: Convert to fraction form
    135.54/188.34 = 133.82/x
  3. Step 3: Cross multiply
    135.54x = 188.34 × 133.82
  4. Step 4: Simplify right side
    135.54x = 25,203.67
  5. Step 5: Solve for x
    x = 25,203.67/135.54
  6. Step 6: Final answer
    x = 185.95

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.