Home / 126,821.22-190,246.41-74,231.16

Finding the Fourth Proportional to 126,821.22, 190,246.41 and 74,231.16

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Solution

The fourth proportional to 126,821.22, 190,246.41 and 74,231.16 is: 111,355.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,821.22 : 190,246.41 = 74,231.16 : x
  2. Step 2: Convert to fraction form
    126,821.22/190,246.41 = 74,231.16/x
  3. Step 3: Cross multiply
    126,821.22x = 190,246.41 × 74,231.16
  4. Step 4: Simplify right side
    126,821.22x = 14,122,211,700.14
  5. Step 5: Solve for x
    x = 14,122,211,700.14/126,821.22
  6. Step 6: Final answer
    x = 111,355.27

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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.