Home / 200,015.26-300,022.80-80,126.62

Finding the Fourth Proportional to 200,015.26, 300,022.80 and 80,126.62

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Solution

The fourth proportional to 200,015.26, 300,022.80 and 80,126.62 is: 120,189.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,015.26 : 300,022.80 = 80,126.62 : x
  2. Step 2: Convert to fraction form
    200,015.26/300,022.80 = 80,126.62/x
  3. Step 3: Cross multiply
    200,015.26x = 300,022.80 × 80,126.62
  4. Step 4: Simplify right side
    200,015.26x = 24,039,812,886.94
  5. Step 5: Solve for x
    x = 24,039,812,886.94/200,015.26
  6. Step 6: Final answer
    x = 120,189.89

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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.