Home / 220,787.70-331,230.75-80,546.32

Finding the Fourth Proportional to 220,787.70, 331,230.75 and 80,546.32

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Solution

The fourth proportional to 220,787.70, 331,230.75 and 80,546.32 is: 120,837.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,787.70 : 331,230.75 = 80,546.32 : x
  2. Step 2: Convert to fraction form
    220,787.70/331,230.75 = 80,546.32/x
  3. Step 3: Cross multiply
    220,787.70x = 331,230.75 × 80,546.32
  4. Step 4: Simplify right side
    220,787.70x = 26,679,417,983.34
  5. Step 5: Solve for x
    x = 26,679,417,983.34/220,787.70
  6. Step 6: Final answer
    x = 120,837.43

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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.