Home / 307,783.15-461,651.67-108,105.30

Finding the Fourth Proportional to 307,783.15, 461,651.67 and 108,105.30

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Solution

The fourth proportional to 307,783.15, 461,651.67 and 108,105.30 is: 162,149.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,783.15 : 461,651.67 = 108,105.30 : x
  2. Step 2: Convert to fraction form
    307,783.15/461,651.67 = 108,105.30/x
  3. Step 3: Cross multiply
    307,783.15x = 461,651.67 × 108,105.30
  4. Step 4: Simplify right side
    307,783.15x = 49,906,992,280.85
  5. Step 5: Solve for x
    x = 49,906,992,280.85/307,783.15
  6. Step 6: Final answer
    x = 162,149.85

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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.