Home / 199,139.20-298,305.60-124,028.80

Finding the Fourth Proportional to 199,139.20, 298,305.60 and 124,028.80

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Solution

The fourth proportional to 199,139.20, 298,305.60 and 124,028.80 is: 185,792.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,139.20 : 298,305.60 = 124,028.80 : x
  2. Step 2: Convert to fraction form
    199,139.20/298,305.60 = 124,028.80/x
  3. Step 3: Cross multiply
    199,139.20x = 298,305.60 × 124,028.80
  4. Step 4: Simplify right side
    199,139.20x = 36,998,485,601.28
  5. Step 5: Solve for x
    x = 36,998,485,601.28/199,139.20
  6. Step 6: Final answer
    x = 185,792.08

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1.5x scale

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.