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Finding the Fourth Proportional to 169.75, 234.32 and 118.03

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Solution

The fourth proportional to 169.75, 234.32 and 118.03 is: 162.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    169.75 : 234.32 = 118.03 : x
  2. Step 2: Convert to fraction form
    169.75/234.32 = 118.03/x
  3. Step 3: Cross multiply
    169.75x = 234.32 × 118.03
  4. Step 4: Simplify right side
    169.75x = 27,656.20
  5. Step 5: Solve for x
    x = 27,656.20/169.75
  6. Step 6: Final answer
    x = 162.92

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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.