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Finding the Fourth Proportional to 124.50, 185.51 and 110.87

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Solution

The fourth proportional to 124.50, 185.51 and 110.87 is: 165.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    124.50 : 185.51 = 110.87 : x
  2. Step 2: Convert to fraction form
    124.50/185.51 = 110.87/x
  3. Step 3: Cross multiply
    124.50x = 185.51 × 110.87
  4. Step 4: Simplify right side
    124.50x = 20,567.54
  5. Step 5: Solve for x
    x = 20,567.54/124.50
  6. Step 6: Final answer
    x = 165.20

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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.