Home / 126,983.70-190,513.62-38,240.10

Finding the Fourth Proportional to 126,983.70, 190,513.62 and 38,240.10

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Solution

The fourth proportional to 126,983.70, 190,513.62 and 38,240.10 is: 57,371.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,983.70 : 190,513.62 = 38,240.10 : x
  2. Step 2: Convert to fraction form
    126,983.70/190,513.62 = 38,240.10/x
  3. Step 3: Cross multiply
    126,983.70x = 190,513.62 × 38,240.10
  4. Step 4: Simplify right side
    126,983.70x = 7,285,259,880.16
  5. Step 5: Solve for x
    x = 7,285,259,880.16/126,983.70
  6. Step 6: Final answer
    x = 57,371.61

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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.