Home / 199,621.68-275,473.80-108,979.44

Finding the Fourth Proportional to 199,621.68, 275,473.80 and 108,979.44

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Solution

The fourth proportional to 199,621.68, 275,473.80 and 108,979.44 is: 150,389.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,621.68 : 275,473.80 = 108,979.44 : x
  2. Step 2: Convert to fraction form
    199,621.68/275,473.80 = 108,979.44/x
  3. Step 3: Cross multiply
    199,621.68x = 275,473.80 × 108,979.44
  4. Step 4: Simplify right side
    199,621.68x = 30,020,980,458.67
  5. Step 5: Solve for x
    x = 30,020,980,458.67/199,621.68
  6. Step 6: Final answer
    x = 150,389.38

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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.