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Finding the Fourth Proportional to 95.62, 130.94 and 94.36

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Solution

The fourth proportional to 95.62, 130.94 and 94.36 is: 129.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    95.62 : 130.94 = 94.36 : x
  2. Step 2: Convert to fraction form
    95.62/130.94 = 94.36/x
  3. Step 3: Cross multiply
    95.62x = 130.94 × 94.36
  4. Step 4: Simplify right side
    95.62x = 12,355.50
  5. Step 5: Solve for x
    x = 12,355.50/95.62
  6. Step 6: Final answer
    x = 129.21

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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.