Home / 199,640.09-275,499.11-108,991.67

Finding the Fourth Proportional to 199,640.09, 275,499.11 and 108,991.67

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Solution

The fourth proportional to 199,640.09, 275,499.11 and 108,991.67 is: 150,406.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,640.09 : 275,499.11 = 108,991.67 : x
  2. Step 2: Convert to fraction form
    199,640.09/275,499.11 = 108,991.67/x
  3. Step 3: Cross multiply
    199,640.09x = 275,499.11 × 108,991.67
  4. Step 4: Simplify right side
    199,640.09x = 30,027,108,082.41
  5. Step 5: Solve for x
    x = 30,027,108,082.41/199,640.09
  6. Step 6: Final answer
    x = 150,406.20

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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.