Home / 221,748.57-332,754.08-81,605.61

Finding the Fourth Proportional to 221,748.57, 332,754.08 and 81,605.61

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Solution

The fourth proportional to 221,748.57, 332,754.08 and 81,605.61 is: 122,456.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,748.57 : 332,754.08 = 81,605.61 : x
  2. Step 2: Convert to fraction form
    221,748.57/332,754.08 = 81,605.61/x
  3. Step 3: Cross multiply
    221,748.57x = 332,754.08 × 81,605.61
  4. Step 4: Simplify right side
    221,748.57x = 27,154,599,270.36
  5. Step 5: Solve for x
    x = 27,154,599,270.36/221,748.57
  6. Step 6: Final answer
    x = 122,456.71

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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.