Home / 221,942.96-332,947.62-81,690.92

Finding the Fourth Proportional to 221,942.96, 332,947.62 and 81,690.92

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Solution

The fourth proportional to 221,942.96, 332,947.62 and 81,690.92 is: 122,548.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,942.96 : 332,947.62 = 81,690.92 : x
  2. Step 2: Convert to fraction form
    221,942.96/332,947.62 = 81,690.92/x
  3. Step 3: Cross multiply
    221,942.96x = 332,947.62 × 81,690.92
  4. Step 4: Simplify right side
    221,942.96x = 27,198,797,389.61
  5. Step 5: Solve for x
    x = 27,198,797,389.61/221,942.96
  6. Step 6: Final answer
    x = 122,548.59

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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.