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Finding the Fourth Proportional to 167.12, 230.60 and 97.18

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Solution

The fourth proportional to 167.12, 230.60 and 97.18 is: 134.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.12 : 230.60 = 97.18 : x
  2. Step 2: Convert to fraction form
    167.12/230.60 = 97.18/x
  3. Step 3: Cross multiply
    167.12x = 230.60 × 97.18
  4. Step 4: Simplify right side
    167.12x = 22,409.71
  5. Step 5: Solve for x
    x = 22,409.71/167.12
  6. Step 6: Final answer
    x = 134.09

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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.