Home / 199,621.70-275,482.11-108,981.48

Finding the Fourth Proportional to 199,621.70, 275,482.11 and 108,981.48

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Solution

The fourth proportional to 199,621.70, 275,482.11 and 108,981.48 is: 150,396.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,621.70 : 275,482.11 = 108,981.48 : x
  2. Step 2: Convert to fraction form
    199,621.70/275,482.11 = 108,981.48/x
  3. Step 3: Cross multiply
    199,621.70x = 275,482.11 × 108,981.48
  4. Step 4: Simplify right side
    199,621.70x = 30,022,449,022.48
  5. Step 5: Solve for x
    x = 30,022,449,022.48/199,621.70
  6. Step 6: Final answer
    x = 150,396.72

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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.