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Finding the Fourth Proportional to 136.82, 188.74 and 95.41

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Solution

The fourth proportional to 136.82, 188.74 and 95.41 is: 131.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    136.82 : 188.74 = 95.41 : x
  2. Step 2: Convert to fraction form
    136.82/188.74 = 95.41/x
  3. Step 3: Cross multiply
    136.82x = 188.74 × 95.41
  4. Step 4: Simplify right side
    136.82x = 18,007.68
  5. Step 5: Solve for x
    x = 18,007.68/136.82
  6. Step 6: Final answer
    x = 131.62

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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.