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Finding the Fourth Proportional to 124.28, 187.24 and 114.44

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Solution

The fourth proportional to 124.28, 187.24 and 114.44 is: 172.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    124.28 : 187.24 = 114.44 : x
  2. Step 2: Convert to fraction form
    124.28/187.24 = 114.44/x
  3. Step 3: Cross multiply
    124.28x = 187.24 × 114.44
  4. Step 4: Simplify right side
    124.28x = 21,426.95
  5. Step 5: Solve for x
    x = 21,426.95/124.28
  6. Step 6: Final answer
    x = 172.42

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.