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Finding the Fourth Proportional to 108.08, 150.18 and 106.96

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Solution

The fourth proportional to 108.08, 150.18 and 106.96 is: 148.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    108.08 : 150.18 = 106.96 : x
  2. Step 2: Convert to fraction form
    108.08/150.18 = 106.96/x
  3. Step 3: Cross multiply
    108.08x = 150.18 × 106.96
  4. Step 4: Simplify right side
    108.08x = 16,063.25
  5. Step 5: Solve for x
    x = 16,063.25/108.08
  6. Step 6: Final answer
    x = 148.62

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.