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Finding the Fourth Proportional to 135.88, 188.49 and 134.53

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Solution

The fourth proportional to 135.88, 188.49 and 134.53 is: 186.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    135.88 : 188.49 = 134.53 : x
  2. Step 2: Convert to fraction form
    135.88/188.49 = 134.53/x
  3. Step 3: Cross multiply
    135.88x = 188.49 × 134.53
  4. Step 4: Simplify right side
    135.88x = 25,357.59
  5. Step 5: Solve for x
    x = 25,357.59/135.88
  6. Step 6: Final answer
    x = 186.62

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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.