Home / 126,908.70-190,233.45-74,291.10

Finding the Fourth Proportional to 126,908.70, 190,233.45 and 74,291.10

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Solution

The fourth proportional to 126,908.70, 190,233.45 and 74,291.10 is: 111,360.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,908.70 : 190,233.45 = 74,291.10 : x
  2. Step 2: Convert to fraction form
    126,908.70/190,233.45 = 74,291.10/x
  3. Step 3: Cross multiply
    126,908.70x = 190,233.45 × 74,291.10
  4. Step 4: Simplify right side
    126,908.70x = 14,132,652,257.30
  5. Step 5: Solve for x
    x = 14,132,652,257.30/126,908.70
  6. Step 6: Final answer
    x = 111,360.78

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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.