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Finding the Fourth Proportional to 169.85, 234.06 and 123.14

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Solution

The fourth proportional to 169.85, 234.06 and 123.14 is: 169.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    169.85 : 234.06 = 123.14 : x
  2. Step 2: Convert to fraction form
    169.85/234.06 = 123.14/x
  3. Step 3: Cross multiply
    169.85x = 234.06 × 123.14
  4. Step 4: Simplify right side
    169.85x = 28,820.98
  5. Step 5: Solve for x
    x = 28,820.98/169.85
  6. Step 6: Final answer
    x = 169.69

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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.