Home / 221,716.20-332,574.30-81,456.60

Finding the Fourth Proportional to 221,716.20, 332,574.30 and 81,456.60

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Solution

The fourth proportional to 221,716.20, 332,574.30 and 81,456.60 is: 122,184.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,716.20 : 332,574.30 = 81,456.60 : x
  2. Step 2: Convert to fraction form
    221,716.20/332,574.30 = 81,456.60/x
  3. Step 3: Cross multiply
    221,716.20x = 332,574.30 × 81,456.60
  4. Step 4: Simplify right side
    221,716.20x = 27,090,371,725.38
  5. Step 5: Solve for x
    x = 27,090,371,725.38/221,716.20
  6. Step 6: Final answer
    x = 122,184.90

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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.