Home / 126,755.12-190,319.60-70,704.74

Finding the Fourth Proportional to 126,755.12, 190,319.60 and 70,704.74

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Solution

The fourth proportional to 126,755.12, 190,319.60 and 70,704.74 is: 106,161.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,755.12 : 190,319.60 = 70,704.74 : x
  2. Step 2: Convert to fraction form
    126,755.12/190,319.60 = 70,704.74/x
  3. Step 3: Cross multiply
    126,755.12x = 190,319.60 × 70,704.74
  4. Step 4: Simplify right side
    126,755.12x = 13,456,497,834.90
  5. Step 5: Solve for x
    x = 13,456,497,834.90/126,755.12
  6. Step 6: Final answer
    x = 106,161.38

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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.