Home / 213,718.20-320,606.10-73,519.80

Finding the Fourth Proportional to 213,718.20, 320,606.10 and 73,519.80

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Solution

The fourth proportional to 213,718.20, 320,606.10 and 73,519.80 is: 110,289.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,718.20 : 320,606.10 = 73,519.80 : x
  2. Step 2: Convert to fraction form
    213,718.20/320,606.10 = 73,519.80/x
  3. Step 3: Cross multiply
    213,718.20x = 320,606.10 × 73,519.80
  4. Step 4: Simplify right side
    213,718.20x = 23,570,896,350.78
  5. Step 5: Solve for x
    x = 23,570,896,350.78/213,718.20
  6. Step 6: Final answer
    x = 110,289.61

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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.