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Finding the Fourth Proportional to 95.70, 132.22 and 94.08

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Solution

The fourth proportional to 95.70, 132.22 and 94.08 is: 129.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    95.70 : 132.22 = 94.08 : x
  2. Step 2: Convert to fraction form
    95.70/132.22 = 94.08/x
  3. Step 3: Cross multiply
    95.70x = 132.22 × 94.08
  4. Step 4: Simplify right side
    95.70x = 12,439.26
  5. Step 5: Solve for x
    x = 12,439.26/95.70
  6. Step 6: Final answer
    x = 129.98

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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.