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Finding the Fourth Proportional to 110.18, 152.03 and 63.54

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Solution

The fourth proportional to 110.18, 152.03 and 63.54 is: 87.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    110.18 : 152.03 = 63.54 : x
  2. Step 2: Convert to fraction form
    110.18/152.03 = 63.54/x
  3. Step 3: Cross multiply
    110.18x = 152.03 × 63.54
  4. Step 4: Simplify right side
    110.18x = 9,659.67
  5. Step 5: Solve for x
    x = 9,659.67/110.18
  6. Step 6: Final answer
    x = 87.68

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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.