Home / 221,069.56-331,505.24-80,729.50

Finding the Fourth Proportional to 221,069.56, 331,505.24 and 80,729.50

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Solution

The fourth proportional to 221,069.56, 331,505.24 and 80,729.50 is: 121,058.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,069.56 : 331,505.24 = 80,729.50 : x
  2. Step 2: Convert to fraction form
    221,069.56/331,505.24 = 80,729.50/x
  3. Step 3: Cross multiply
    221,069.56x = 331,505.24 × 80,729.50
  4. Step 4: Simplify right side
    221,069.56x = 26,762,252,272.58
  5. Step 5: Solve for x
    x = 26,762,252,272.58/221,069.56
  6. Step 6: Final answer
    x = 121,058.06

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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.