Home / 204,189.72-306,317.24-71,107.80

Finding the Fourth Proportional to 204,189.72, 306,317.24 and 71,107.80

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Solution

The fourth proportional to 204,189.72, 306,317.24 and 71,107.80 is: 106,673.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,189.72 : 306,317.24 = 71,107.80 : x
  2. Step 2: Convert to fraction form
    204,189.72/306,317.24 = 71,107.80/x
  3. Step 3: Cross multiply
    204,189.72x = 306,317.24 × 71,107.80
  4. Step 4: Simplify right side
    204,189.72x = 21,781,545,038.47
  5. Step 5: Solve for x
    x = 21,781,545,038.47/204,189.72
  6. Step 6: Final answer
    x = 106,673.07

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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.