Home / 199,930.56-275,885.12-109,280.80

Finding the Fourth Proportional to 199,930.56, 275,885.12 and 109,280.80

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Solution

The fourth proportional to 199,930.56, 275,885.12 and 109,280.80 is: 150,797.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,930.56 : 275,885.12 = 109,280.80 : x
  2. Step 2: Convert to fraction form
    199,930.56/275,885.12 = 109,280.80/x
  3. Step 3: Cross multiply
    199,930.56x = 275,885.12 × 109,280.80
  4. Step 4: Simplify right side
    199,930.56x = 30,148,946,621.70
  5. Step 5: Solve for x
    x = 30,148,946,621.70/199,930.56
  6. Step 6: Final answer
    x = 150,797.09

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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.