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Finding the Fourth Proportional to 96.93, 144.43 and 95.31

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Solution

The fourth proportional to 96.93, 144.43 and 95.31 is: 142.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.93 : 144.43 = 95.31 : x
  2. Step 2: Convert to fraction form
    96.93/144.43 = 95.31/x
  3. Step 3: Cross multiply
    96.93x = 144.43 × 95.31
  4. Step 4: Simplify right side
    96.93x = 13,765.39
  5. Step 5: Solve for x
    x = 13,765.39/96.93
  6. Step 6: Final answer
    x = 142.01

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.