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Finding the Fourth Proportional to 122.34, 168.13 and 110.19

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Solution

The fourth proportional to 122.34, 168.13 and 110.19 is: 151.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    122.34 : 168.13 = 110.19 : x
  2. Step 2: Convert to fraction form
    122.34/168.13 = 110.19/x
  3. Step 3: Cross multiply
    122.34x = 168.13 × 110.19
  4. Step 4: Simplify right side
    122.34x = 18,526.24
  5. Step 5: Solve for x
    x = 18,526.24/122.34
  6. Step 6: Final answer
    x = 151.43

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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.