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Finding the Fourth Proportional to 126.06, 190.14 and 124.44

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Solution

The fourth proportional to 126.06, 190.14 and 124.44 is: 187.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    126.06 : 190.14 = 124.44 : x
  2. Step 2: Convert to fraction form
    126.06/190.14 = 124.44/x
  3. Step 3: Cross multiply
    126.06x = 190.14 × 124.44
  4. Step 4: Simplify right side
    126.06x = 23,661.02
  5. Step 5: Solve for x
    x = 23,661.02/126.06
  6. Step 6: Final answer
    x = 187.70

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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.