Home / 200,123.22-300,198.51-66,998.10

Finding the Fourth Proportional to 200,123.22, 300,198.51 and 66,998.10

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Solution

The fourth proportional to 200,123.22, 300,198.51 and 66,998.10 is: 100,501.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,123.22 : 300,198.51 = 66,998.10 : x
  2. Step 2: Convert to fraction form
    200,123.22/300,198.51 = 66,998.10/x
  3. Step 3: Cross multiply
    200,123.22x = 300,198.51 × 66,998.10
  4. Step 4: Simplify right side
    200,123.22x = 20,112,729,792.83
  5. Step 5: Solve for x
    x = 20,112,729,792.83/200,123.22
  6. Step 6: Final answer
    x = 100,501.73

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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.