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Finding the Fourth Proportional to 131.29, 182.11 and 124.37

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Solution

The fourth proportional to 131.29, 182.11 and 124.37 is: 172.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    131.29 : 182.11 = 124.37 : x
  2. Step 2: Convert to fraction form
    131.29/182.11 = 124.37/x
  3. Step 3: Cross multiply
    131.29x = 182.11 × 124.37
  4. Step 4: Simplify right side
    131.29x = 22,649.02
  5. Step 5: Solve for x
    x = 22,649.02/131.29
  6. Step 6: Final answer
    x = 172.51

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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.