Home / 100,249.21-150,280.39-50,270.91

Finding the Fourth Proportional to 100,249.21, 150,280.39 and 50,270.91

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Solution

The fourth proportional to 100,249.21, 150,280.39 and 50,270.91 is: 75,359.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,249.21 : 150,280.39 = 50,270.91 : x
  2. Step 2: Convert to fraction form
    100,249.21/150,280.39 = 50,270.91/x
  3. Step 3: Cross multiply
    100,249.21x = 150,280.39 × 50,270.91
  4. Step 4: Simplify right side
    100,249.21x = 7,554,731,846.68
  5. Step 5: Solve for x
    x = 7,554,731,846.68/100,249.21
  6. Step 6: Final answer
    x = 75,359.51

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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.