Home / 321,111.20-481,722.44-107,899.92

Finding the Fourth Proportional to 321,111.20, 481,722.44 and 107,899.92

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Solution

The fourth proportional to 321,111.20, 481,722.44 and 107,899.92 is: 161,868.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,111.20 : 481,722.44 = 107,899.92 : x
  2. Step 2: Convert to fraction form
    321,111.20/481,722.44 = 107,899.92/x
  3. Step 3: Cross multiply
    321,111.20x = 481,722.44 × 107,899.92
  4. Step 4: Simplify right side
    321,111.20x = 51,977,812,738.20
  5. Step 5: Solve for x
    x = 51,977,812,738.20/321,111.20
  6. Step 6: Final answer
    x = 161,868.58

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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.