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Finding the Fourth Proportional to 168.93, 233.13 and 98.98

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Solution

The fourth proportional to 168.93, 233.13 and 98.98 is: 136.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    168.93 : 233.13 = 98.98 : x
  2. Step 2: Convert to fraction form
    168.93/233.13 = 98.98/x
  3. Step 3: Cross multiply
    168.93x = 233.13 × 98.98
  4. Step 4: Simplify right side
    168.93x = 23,074.62
  5. Step 5: Solve for x
    x = 23,074.62/168.93
  6. Step 6: Final answer
    x = 136.59

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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.