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Finding the Fourth Proportional to 168.51, 232.42 and 103.04

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Solution

The fourth proportional to 168.51, 232.42 and 103.04 is: 142.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    168.51 : 232.42 = 103.04 : x
  2. Step 2: Convert to fraction form
    168.51/232.42 = 103.04/x
  3. Step 3: Cross multiply
    168.51x = 232.42 × 103.04
  4. Step 4: Simplify right side
    168.51x = 23,949.14
  5. Step 5: Solve for x
    x = 23,949.14/168.51
  6. Step 6: Final answer
    x = 142.13

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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.