Home / 199,683.45-275,563.11-109,039.80

Finding the Fourth Proportional to 199,683.45, 275,563.11 and 109,039.80

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Solution

The fourth proportional to 199,683.45, 275,563.11 and 109,039.80 is: 150,474.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,683.45 : 275,563.11 = 109,039.80 : x
  2. Step 2: Convert to fraction form
    199,683.45/275,563.11 = 109,039.80/x
  3. Step 3: Cross multiply
    199,683.45x = 275,563.11 × 109,039.80
  4. Step 4: Simplify right side
    199,683.45x = 30,047,346,401.78
  5. Step 5: Solve for x
    x = 30,047,346,401.78/199,683.45
  6. Step 6: Final answer
    x = 150,474.90

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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.