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Finding the Fourth Proportional to 148.98, 205.29 and 96.47

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Solution

The fourth proportional to 148.98, 205.29 and 96.47 is: 132.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    148.98 : 205.29 = 96.47 : x
  2. Step 2: Convert to fraction form
    148.98/205.29 = 96.47/x
  3. Step 3: Cross multiply
    148.98x = 205.29 × 96.47
  4. Step 4: Simplify right side
    148.98x = 19,803.30
  5. Step 5: Solve for x
    x = 19,803.30/148.98
  6. Step 6: Final answer
    x = 132.93

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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.