Home / 198,790.94-298,185.02-80,460.57

Finding the Fourth Proportional to 198,790.94, 298,185.02 and 80,460.57

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Solution

The fourth proportional to 198,790.94, 298,185.02 and 80,460.57 is: 120,690.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,790.94 : 298,185.02 = 80,460.57 : x
  2. Step 2: Convert to fraction form
    198,790.94/298,185.02 = 80,460.57/x
  3. Step 3: Cross multiply
    198,790.94x = 298,185.02 × 80,460.57
  4. Step 4: Simplify right side
    198,790.94x = 23,992,137,692.28
  5. Step 5: Solve for x
    x = 23,992,137,692.28/198,790.94
  6. Step 6: Final answer
    x = 120,690.30

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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.