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Finding the Fourth Proportional to 97.15, 133.26 and 95.12

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Solution

The fourth proportional to 97.15, 133.26 and 95.12 is: 130.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    97.15 : 133.26 = 95.12 : x
  2. Step 2: Convert to fraction form
    97.15/133.26 = 95.12/x
  3. Step 3: Cross multiply
    97.15x = 133.26 × 95.12
  4. Step 4: Simplify right side
    97.15x = 12,676.02
  5. Step 5: Solve for x
    x = 12,676.02/97.15
  6. Step 6: Final answer
    x = 130.48

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.