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Finding the Fourth Proportional to 96.14, 144.44 and 89.31

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Solution

The fourth proportional to 96.14, 144.44 and 89.31 is: 134.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.14 : 144.44 = 89.31 : x
  2. Step 2: Convert to fraction form
    96.14/144.44 = 89.31/x
  3. Step 3: Cross multiply
    96.14x = 144.44 × 89.31
  4. Step 4: Simplify right side
    96.14x = 12,900.06
  5. Step 5: Solve for x
    x = 12,900.06/96.14
  6. Step 6: Final answer
    x = 134.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.