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Finding the Fourth Proportional to 137.16, 188.75 and 132.71

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Solution

The fourth proportional to 137.16, 188.75 and 132.71 is: 182.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    137.16 : 188.75 = 132.71 : x
  2. Step 2: Convert to fraction form
    137.16/188.75 = 132.71/x
  3. Step 3: Cross multiply
    137.16x = 188.75 × 132.71
  4. Step 4: Simplify right side
    137.16x = 25,048.40
  5. Step 5: Solve for x
    x = 25,048.40/137.16
  6. Step 6: Final answer
    x = 182.62

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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.