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Finding the Fourth Proportional to 96.96, 144.40 and 96.32

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Solution

The fourth proportional to 96.96, 144.40 and 96.32 is: 143.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.96 : 144.40 = 96.32 : x
  2. Step 2: Convert to fraction form
    96.96/144.40 = 96.32/x
  3. Step 3: Cross multiply
    96.96x = 144.40 × 96.32
  4. Step 4: Simplify right side
    96.96x = 13,908.61
  5. Step 5: Solve for x
    x = 13,908.61/96.96
  6. Step 6: Final answer
    x = 143.45

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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.