Home / 220,907.72-331,352.30-71,144.66

Finding the Fourth Proportional to 220,907.72, 331,352.30 and 71,144.66

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Solution

The fourth proportional to 220,907.72, 331,352.30 and 71,144.66 is: 106,714.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,907.72 : 331,352.30 = 71,144.66 : x
  2. Step 2: Convert to fraction form
    220,907.72/331,352.30 = 71,144.66/x
  3. Step 3: Cross multiply
    220,907.72x = 331,352.30 × 71,144.66
  4. Step 4: Simplify right side
    220,907.72x = 23,573,947,729.96
  5. Step 5: Solve for x
    x = 23,573,947,729.96/220,907.72
  6. Step 6: Final answer
    x = 106,714.00

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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.