Home / 221,647.54-332,504.12-81,395.24

Finding the Fourth Proportional to 221,647.54, 332,504.12 and 81,395.24

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Solution

The fourth proportional to 221,647.54, 332,504.12 and 81,395.24 is: 122,104.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,647.54 : 332,504.12 = 81,395.24 : x
  2. Step 2: Convert to fraction form
    221,647.54/332,504.12 = 81,395.24/x
  3. Step 3: Cross multiply
    221,647.54x = 332,504.12 × 81,395.24
  4. Step 4: Simplify right side
    221,647.54x = 27,064,252,648.39
  5. Step 5: Solve for x
    x = 27,064,252,648.39/221,647.54
  6. Step 6: Final answer
    x = 122,104.91

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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.