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Finding the Fourth Proportional to 108.76, 150.01 and 67.33

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Solution

The fourth proportional to 108.76, 150.01 and 67.33 is: 92.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    108.76 : 150.01 = 67.33 : x
  2. Step 2: Convert to fraction form
    108.76/150.01 = 67.33/x
  3. Step 3: Cross multiply
    108.76x = 150.01 × 67.33
  4. Step 4: Simplify right side
    108.76x = 10,100.44
  5. Step 5: Solve for x
    x = 10,100.44/108.76
  6. Step 6: Final answer
    x = 92.87

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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.