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Finding the Fourth Proportional to 168.04, 232.08 and 123.88

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Solution

The fourth proportional to 168.04, 232.08 and 123.88 is: 171.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    168.04 : 232.08 = 123.88 : x
  2. Step 2: Convert to fraction form
    168.04/232.08 = 123.88/x
  3. Step 3: Cross multiply
    168.04x = 232.08 × 123.88
  4. Step 4: Simplify right side
    168.04x = 28,750.07
  5. Step 5: Solve for x
    x = 28,750.07/168.04
  6. Step 6: Final answer
    x = 171.09

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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.