Home / 320,786.70-481,180.05-84,153.30

Finding the Fourth Proportional to 320,786.70, 481,180.05 and 84,153.30

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Solution

The fourth proportional to 320,786.70, 481,180.05 and 84,153.30 is: 126,229.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,786.70 : 481,180.05 = 84,153.30 : x
  2. Step 2: Convert to fraction form
    320,786.70/481,180.05 = 84,153.30/x
  3. Step 3: Cross multiply
    320,786.70x = 481,180.05 × 84,153.30
  4. Step 4: Simplify right side
    320,786.70x = 40,492,889,101.67
  5. Step 5: Solve for x
    x = 40,492,889,101.67/320,786.70
  6. Step 6: Final answer
    x = 126,229.95

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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.