Home / 200,206.96-300,101.22-66,977.62

Finding the Fourth Proportional to 200,206.96, 300,101.22 and 66,977.62

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Solution

The fourth proportional to 200,206.96, 300,101.22 and 66,977.62 is: 100,396.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,206.96 : 300,101.22 = 66,977.62 : x
  2. Step 2: Convert to fraction form
    200,206.96/300,101.22 = 66,977.62/x
  3. Step 3: Cross multiply
    200,206.96x = 300,101.22 × 66,977.62
  4. Step 4: Simplify right side
    200,206.96x = 20,100,064,724.44
  5. Step 5: Solve for x
    x = 20,100,064,724.44/200,206.96
  6. Step 6: Final answer
    x = 100,396.43

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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.