Home / 199,942.32-299,839.77-66,786.96

Finding the Fourth Proportional to 199,942.32, 299,839.77 and 66,786.96

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Solution

The fourth proportional to 199,942.32, 299,839.77 and 66,786.96 is: 100,155.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,942.32 : 299,839.77 = 66,786.96 : x
  2. Step 2: Convert to fraction form
    199,942.32/299,839.77 = 66,786.96/x
  3. Step 3: Cross multiply
    199,942.32x = 299,839.77 × 66,786.96
  4. Step 4: Simplify right side
    199,942.32x = 20,025,386,725.40
  5. Step 5: Solve for x
    x = 20,025,386,725.40/199,942.32
  6. Step 6: Final answer
    x = 100,155.82

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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.