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Finding the Fourth Proportional to 146.82, 201.74 and 137.34

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Solution

The fourth proportional to 146.82, 201.74 and 137.34 is: 188.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    146.82 : 201.74 = 137.34 : x
  2. Step 2: Convert to fraction form
    146.82/201.74 = 137.34/x
  3. Step 3: Cross multiply
    146.82x = 201.74 × 137.34
  4. Step 4: Simplify right side
    146.82x = 27,706.28
  5. Step 5: Solve for x
    x = 27,706.28/146.82
  6. Step 6: Final answer
    x = 188.71

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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.