Home / 126,947.22-190,499.91-115,122.36

Finding the Fourth Proportional to 126,947.22, 190,499.91 and 115,122.36

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Solution

The fourth proportional to 126,947.22, 190,499.91 and 115,122.36 is: 172,755.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,947.22 : 190,499.91 = 115,122.36 : x
  2. Step 2: Convert to fraction form
    126,947.22/190,499.91 = 115,122.36/x
  3. Step 3: Cross multiply
    126,947.22x = 190,499.91 × 115,122.36
  4. Step 4: Simplify right side
    126,947.22x = 21,930,799,218.99
  5. Step 5: Solve for x
    x = 21,930,799,218.99/126,947.22
  6. Step 6: Final answer
    x = 172,755.25

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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.