Home / 199,839.09-275,769.77-109,198.16

Finding the Fourth Proportional to 199,839.09, 275,769.77 and 109,198.16

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Solution

The fourth proportional to 199,839.09, 275,769.77 and 109,198.16 is: 150,688.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,839.09 : 275,769.77 = 109,198.16 : x
  2. Step 2: Convert to fraction form
    199,839.09/275,769.77 = 109,198.16/x
  3. Step 3: Cross multiply
    199,839.09x = 275,769.77 × 109,198.16
  4. Step 4: Simplify right side
    199,839.09x = 30,113,549,542.78
  5. Step 5: Solve for x
    x = 30,113,549,542.78/199,839.09
  6. Step 6: Final answer
    x = 150,688.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.