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Finding the Fourth Proportional to 167.18, 230.69 and 93.49

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Solution

The fourth proportional to 167.18, 230.69 and 93.49 is: 129.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.18 : 230.69 = 93.49 : x
  2. Step 2: Convert to fraction form
    167.18/230.69 = 93.49/x
  3. Step 3: Cross multiply
    167.18x = 230.69 × 93.49
  4. Step 4: Simplify right side
    167.18x = 21,566.87
  5. Step 5: Solve for x
    x = 21,566.87/167.18
  6. Step 6: Final answer
    x = 129.01

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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.