Home / 200,197.42-300,087-66,968.12

Finding the Fourth Proportional to 200,197.42, 300,087 and 66,968.12

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Solution

The fourth proportional to 200,197.42, 300,087 and 66,968.12 is: 100,382.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,197.42 : 300,087 = 66,968.12 : x
  2. Step 2: Convert to fraction form
    200,197.42/300,087 = 66,968.12/x
  3. Step 3: Cross multiply
    200,197.42x = 300,087 × 66,968.12
  4. Step 4: Simplify right side
    200,197.42x = 20,096,262,226.44
  5. Step 5: Solve for x
    x = 20,096,262,226.44/200,197.42
  6. Step 6: Final answer
    x = 100,382.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.