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Finding the Fourth Proportional to 122.48, 182.48 and 116.24

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Solution

The fourth proportional to 122.48, 182.48 and 116.24 is: 173.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    122.48 : 182.48 = 116.24 : x
  2. Step 2: Convert to fraction form
    122.48/182.48 = 116.24/x
  3. Step 3: Cross multiply
    122.48x = 182.48 × 116.24
  4. Step 4: Simplify right side
    122.48x = 21,211.48
  5. Step 5: Solve for x
    x = 21,211.48/122.48
  6. Step 6: Final answer
    x = 173.18

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.