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Finding the Fourth Proportional to 95.33, 131.36 and 89.39

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Solution

The fourth proportional to 95.33, 131.36 and 89.39 is: 123.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    95.33 : 131.36 = 89.39 : x
  2. Step 2: Convert to fraction form
    95.33/131.36 = 89.39/x
  3. Step 3: Cross multiply
    95.33x = 131.36 × 89.39
  4. Step 4: Simplify right side
    95.33x = 11,742.15
  5. Step 5: Solve for x
    x = 11,742.15/95.33
  6. Step 6: Final answer
    x = 123.17

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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.