Home / 213,519.92-320,293.08-71,377.98

Finding the Fourth Proportional to 213,519.92, 320,293.08 and 71,377.98

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Solution

The fourth proportional to 213,519.92, 320,293.08 and 71,377.98 is: 107,071.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,519.92 : 320,293.08 = 71,377.98 : x
  2. Step 2: Convert to fraction form
    213,519.92/320,293.08 = 71,377.98/x
  3. Step 3: Cross multiply
    213,519.92x = 320,293.08 × 71,377.98
  4. Step 4: Simplify right side
    213,519.92x = 22,861,873,058.38
  5. Step 5: Solve for x
    x = 22,861,873,058.38/213,519.92
  6. Step 6: Final answer
    x = 107,071.39

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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.