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Finding the Fourth Proportional to 149.34, 206.04 and 96.87

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Solution

The fourth proportional to 149.34, 206.04 and 96.87 is: 133.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    149.34 : 206.04 = 96.87 : x
  2. Step 2: Convert to fraction form
    149.34/206.04 = 96.87/x
  3. Step 3: Cross multiply
    149.34x = 206.04 × 96.87
  4. Step 4: Simplify right side
    149.34x = 19,959.09
  5. Step 5: Solve for x
    x = 19,959.09/149.34
  6. Step 6: Final answer
    x = 133.65

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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.