Home / 200,121.96-300,033.90-121,217.16

Finding the Fourth Proportional to 200,121.96, 300,033.90 and 121,217.16

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Solution

The fourth proportional to 200,121.96, 300,033.90 and 121,217.16 is: 181,735.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,121.96 : 300,033.90 = 121,217.16 : x
  2. Step 2: Convert to fraction form
    200,121.96/300,033.90 = 121,217.16/x
  3. Step 3: Cross multiply
    200,121.96x = 300,033.90 × 121,217.16
  4. Step 4: Simplify right side
    200,121.96x = 36,369,257,261.72
  5. Step 5: Solve for x
    x = 36,369,257,261.72/200,121.96
  6. Step 6: Final answer
    x = 181,735.46

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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.