Home / 126,940.20-190,371.92-38,170.14

Finding the Fourth Proportional to 126,940.20, 190,371.92 and 38,170.14

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Solution

The fourth proportional to 126,940.20, 190,371.92 and 38,170.14 is: 57,243.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,940.20 : 190,371.92 = 38,170.14 : x
  2. Step 2: Convert to fraction form
    126,940.20/190,371.92 = 38,170.14/x
  3. Step 3: Cross multiply
    126,940.20x = 190,371.92 × 38,170.14
  4. Step 4: Simplify right side
    126,940.20x = 7,266,522,838.47
  5. Step 5: Solve for x
    x = 7,266,522,838.47/126,940.20
  6. Step 6: Final answer
    x = 57,243.67

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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.