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Finding the Fourth Proportional to 167.07, 230.57 and 93.38

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Solution

The fourth proportional to 167.07, 230.57 and 93.38 is: 128.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.07 : 230.57 = 93.38 : x
  2. Step 2: Convert to fraction form
    167.07/230.57 = 93.38/x
  3. Step 3: Cross multiply
    167.07x = 230.57 × 93.38
  4. Step 4: Simplify right side
    167.07x = 21,530.16
  5. Step 5: Solve for x
    x = 21,530.16/167.07
  6. Step 6: Final answer
    x = 128.87

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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.