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Finding the Fourth Proportional to 95.22, 131.49 and 94.28

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Solution

The fourth proportional to 95.22, 131.49 and 94.28 is: 130.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    95.22 : 131.49 = 94.28 : x
  2. Step 2: Convert to fraction form
    95.22/131.49 = 94.28/x
  3. Step 3: Cross multiply
    95.22x = 131.49 × 94.28
  4. Step 4: Simplify right side
    95.22x = 12,396.22
  5. Step 5: Solve for x
    x = 12,396.22/95.22
  6. Step 6: Final answer
    x = 130.19

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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.