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Finding the Fourth Proportional to 96.39, 145.34 and 94.56

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Solution

The fourth proportional to 96.39, 145.34 and 94.56 is: 142.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.39 : 145.34 = 94.56 : x
  2. Step 2: Convert to fraction form
    96.39/145.34 = 94.56/x
  3. Step 3: Cross multiply
    96.39x = 145.34 × 94.56
  4. Step 4: Simplify right side
    96.39x = 13,743.35
  5. Step 5: Solve for x
    x = 13,743.35/96.39
  6. Step 6: Final answer
    x = 142.59

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.