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Finding the Fourth Proportional to 95.18, 142.68 and 34.27

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Solution

The fourth proportional to 95.18, 142.68 and 34.27 is: 51.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    95.18 : 142.68 = 34.27 : x
  2. Step 2: Convert to fraction form
    95.18/142.68 = 34.27/x
  3. Step 3: Cross multiply
    95.18x = 142.68 × 34.27
  4. Step 4: Simplify right side
    95.18x = 4,888.93
  5. Step 5: Solve for x
    x = 4,888.93/95.18
  6. Step 6: Final answer
    x = 51.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.