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Finding the Fourth Proportional to 148.52, 205.06 and 96.84

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Solution

The fourth proportional to 148.52, 205.06 and 96.84 is: 133.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    148.52 : 205.06 = 96.84 : x
  2. Step 2: Convert to fraction form
    148.52/205.06 = 96.84/x
  3. Step 3: Cross multiply
    148.52x = 205.06 × 96.84
  4. Step 4: Simplify right side
    148.52x = 19,858.01
  5. Step 5: Solve for x
    x = 19,858.01/148.52
  6. Step 6: Final answer
    x = 133.71

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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.