Home / 212,393.24-318,786.78-107,285.96

Finding the Fourth Proportional to 212,393.24, 318,786.78 and 107,285.96

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Solution

The fourth proportional to 212,393.24, 318,786.78 and 107,285.96 is: 161,028.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,393.24 : 318,786.78 = 107,285.96 : x
  2. Step 2: Convert to fraction form
    212,393.24/318,786.78 = 107,285.96/x
  3. Step 3: Cross multiply
    212,393.24x = 318,786.78 × 107,285.96
  4. Step 4: Simplify right side
    212,393.24x = 34,201,345,727.61
  5. Step 5: Solve for x
    x = 34,201,345,727.61/212,393.24
  6. Step 6: Final answer
    x = 161,028.41

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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.