Home / 213,060.31-319,577.94-79,929.42

Finding the Fourth Proportional to 213,060.31, 319,577.94 and 79,929.42

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Solution

The fourth proportional to 213,060.31, 319,577.94 and 79,929.42 is: 119,889.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,060.31 : 319,577.94 = 79,929.42 : x
  2. Step 2: Convert to fraction form
    213,060.31/319,577.94 = 79,929.42/x
  3. Step 3: Cross multiply
    213,060.31x = 319,577.94 × 79,929.42
  4. Step 4: Simplify right side
    213,060.31x = 25,543,679,388.99
  5. Step 5: Solve for x
    x = 25,543,679,388.99/213,060.31
  6. Step 6: Final answer
    x = 119,889.43

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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.