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Finding the Fourth Proportional to 168.93, 233.03 and 106.64

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Solution

The fourth proportional to 168.93, 233.03 and 106.64 is: 147.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    168.93 : 233.03 = 106.64 : x
  2. Step 2: Convert to fraction form
    168.93/233.03 = 106.64/x
  3. Step 3: Cross multiply
    168.93x = 233.03 × 106.64
  4. Step 4: Simplify right side
    168.93x = 24,850.32
  5. Step 5: Solve for x
    x = 24,850.32/168.93
  6. Step 6: Final answer
    x = 147.10

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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.