Home / 213,057.24-319,575.48-79,927.12

Finding the Fourth Proportional to 213,057.24, 319,575.48 and 79,927.12

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Solution

The fourth proportional to 213,057.24, 319,575.48 and 79,927.12 is: 119,886.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,057.24 : 319,575.48 = 79,927.12 : x
  2. Step 2: Convert to fraction form
    213,057.24/319,575.48 = 79,927.12/x
  3. Step 3: Cross multiply
    213,057.24x = 319,575.48 × 79,927.12
  4. Step 4: Simplify right side
    213,057.24x = 25,542,747,838.76
  5. Step 5: Solve for x
    x = 25,542,747,838.76/213,057.24
  6. Step 6: Final answer
    x = 119,886.79

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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.