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Finding the Fourth Proportional to 140.03, 192.19 and 124.13

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Solution

The fourth proportional to 140.03, 192.19 and 124.13 is: 170.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    140.03 : 192.19 = 124.13 : x
  2. Step 2: Convert to fraction form
    140.03/192.19 = 124.13/x
  3. Step 3: Cross multiply
    140.03x = 192.19 × 124.13
  4. Step 4: Simplify right side
    140.03x = 23,856.54
  5. Step 5: Solve for x
    x = 23,856.54/140.03
  6. Step 6: Final answer
    x = 170.37

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.