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Finding the Fourth Proportional to 108.87, 162.13 and 101.95

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Solution

The fourth proportional to 108.87, 162.13 and 101.95 is: 151.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    108.87 : 162.13 = 101.95 : x
  2. Step 2: Convert to fraction form
    108.87/162.13 = 101.95/x
  3. Step 3: Cross multiply
    108.87x = 162.13 × 101.95
  4. Step 4: Simplify right side
    108.87x = 16,529.15
  5. Step 5: Solve for x
    x = 16,529.15/108.87
  6. Step 6: Final answer
    x = 151.82

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.