Home / 199,689.89-275,561.77-109,028.38

Finding the Fourth Proportional to 199,689.89, 275,561.77 and 109,028.38

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Solution

The fourth proportional to 199,689.89, 275,561.77 and 109,028.38 is: 150,453.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,689.89 : 275,561.77 = 109,028.38 : x
  2. Step 2: Convert to fraction form
    199,689.89/275,561.77 = 109,028.38/x
  3. Step 3: Cross multiply
    199,689.89x = 275,561.77 × 109,028.38
  4. Step 4: Simplify right side
    199,689.89x = 30,044,053,373.03
  5. Step 5: Solve for x
    x = 30,044,053,373.03/199,689.89
  6. Step 6: Final answer
    x = 150,453.55

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1.5x scale

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.