Home / 126,684.54-190,040.16-51,792.78

Finding the Fourth Proportional to 126,684.54, 190,040.16 and 51,792.78

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Solution

The fourth proportional to 126,684.54, 190,040.16 and 51,792.78 is: 77,694.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,684.54 : 190,040.16 = 51,792.78 : x
  2. Step 2: Convert to fraction form
    126,684.54/190,040.16 = 51,792.78/x
  3. Step 3: Cross multiply
    126,684.54x = 190,040.16 × 51,792.78
  4. Step 4: Simplify right side
    126,684.54x = 9,842,708,198.04
  5. Step 5: Solve for x
    x = 9,842,708,198.04/126,684.54
  6. Step 6: Final answer
    x = 77,694.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.