Home / 199,943.20-299,930.46-66,823.75

Finding the Fourth Proportional to 199,943.20, 299,930.46 and 66,823.75

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Solution

The fourth proportional to 199,943.20, 299,930.46 and 66,823.75 is: 100,240.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,943.20 : 299,930.46 = 66,823.75 : x
  2. Step 2: Convert to fraction form
    199,943.20/299,930.46 = 66,823.75/x
  3. Step 3: Cross multiply
    199,943.20x = 299,930.46 × 66,823.75
  4. Step 4: Simplify right side
    199,943.20x = 20,042,478,076.43
  5. Step 5: Solve for x
    x = 20,042,478,076.43/199,943.20
  6. Step 6: Final answer
    x = 100,240.86

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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.