Home / 213,243.43-319,843.19-71,073.35

Finding the Fourth Proportional to 213,243.43, 319,843.19 and 71,073.35

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Solution

The fourth proportional to 213,243.43, 319,843.19 and 71,073.35 is: 106,602.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,243.43 : 319,843.19 = 71,073.35 : x
  2. Step 2: Convert to fraction form
    213,243.43/319,843.19 = 71,073.35/x
  3. Step 3: Cross multiply
    213,243.43x = 319,843.19 × 71,073.35
  4. Step 4: Simplify right side
    213,243.43x = 22,732,326,987.99
  5. Step 5: Solve for x
    x = 22,732,326,987.99/213,243.43
  6. Step 6: Final answer
    x = 106,602.71

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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.