Home / 213,327.36-319,772.16-80,183.04

Finding the Fourth Proportional to 213,327.36, 319,772.16 and 80,183.04

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Solution

The fourth proportional to 213,327.36, 319,772.16 and 80,183.04 is: 120,192.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,327.36 : 319,772.16 = 80,183.04 : x
  2. Step 2: Convert to fraction form
    213,327.36/319,772.16 = 80,183.04/x
  3. Step 3: Cross multiply
    213,327.36x = 319,772.16 × 80,183.04
  4. Step 4: Simplify right side
    213,327.36x = 25,640,303,896.17
  5. Step 5: Solve for x
    x = 25,640,303,896.17/213,327.36
  6. Step 6: Final answer
    x = 120,192.29

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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.