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Finding the Fourth Proportional to 124.44, 171.82 and 124.12

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Solution

The fourth proportional to 124.44, 171.82 and 124.12 is: 171.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    124.44 : 171.82 = 124.12 : x
  2. Step 2: Convert to fraction form
    124.44/171.82 = 124.12/x
  3. Step 3: Cross multiply
    124.44x = 171.82 × 124.12
  4. Step 4: Simplify right side
    124.44x = 21,326.30
  5. Step 5: Solve for x
    x = 21,326.30/124.44
  6. Step 6: Final answer
    x = 171.38

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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.