Home / 100,379.08-150,550.38-30,239.56

Finding the Fourth Proportional to 100,379.08, 150,550.38 and 30,239.56

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Solution

The fourth proportional to 100,379.08, 150,550.38 and 30,239.56 is: 45,353.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,379.08 : 150,550.38 = 30,239.56 : x
  2. Step 2: Convert to fraction form
    100,379.08/150,550.38 = 30,239.56/x
  3. Step 3: Cross multiply
    100,379.08x = 150,550.38 × 30,239.56
  4. Step 4: Simplify right side
    100,379.08x = 4,552,577,249.03
  5. Step 5: Solve for x
    x = 4,552,577,249.03/100,379.08
  6. Step 6: Final answer
    x = 45,353.85

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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.