Home / 213,389.75-319,977.97-71,185.52

Finding the Fourth Proportional to 213,389.75, 319,977.97 and 71,185.52

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Solution

The fourth proportional to 213,389.75, 319,977.97 and 71,185.52 is: 106,742.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,389.75 : 319,977.97 = 71,185.52 : x
  2. Step 2: Convert to fraction form
    213,389.75/319,977.97 = 71,185.52/x
  3. Step 3: Cross multiply
    213,389.75x = 319,977.97 × 71,185.52
  4. Step 4: Simplify right side
    213,389.75x = 22,777,798,182.99
  5. Step 5: Solve for x
    x = 22,777,798,182.99/213,389.75
  6. Step 6: Final answer
    x = 106,742.70

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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.