Home / 126,911.43-190,340.42-38,138.67

Finding the Fourth Proportional to 126,911.43, 190,340.42 and 38,138.67

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Solution

The fourth proportional to 126,911.43, 190,340.42 and 38,138.67 is: 57,199.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,911.43 : 190,340.42 = 38,138.67 : x
  2. Step 2: Convert to fraction form
    126,911.43/190,340.42 = 38,138.67/x
  3. Step 3: Cross multiply
    126,911.43x = 190,340.42 × 38,138.67
  4. Step 4: Simplify right side
    126,911.43x = 7,259,330,275.35
  5. Step 5: Solve for x
    x = 7,259,330,275.35/126,911.43
  6. Step 6: Final answer
    x = 57,199.97

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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.