Home / 221,821.19-332,759.36-86,867.83

Finding the Fourth Proportional to 221,821.19, 332,759.36 and 86,867.83

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Solution

The fourth proportional to 221,821.19, 332,759.36 and 86,867.83 is: 130,312.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,821.19 : 332,759.36 = 86,867.83 : x
  2. Step 2: Convert to fraction form
    221,821.19/332,759.36 = 86,867.83/x
  3. Step 3: Cross multiply
    221,821.19x = 332,759.36 × 86,867.83
  4. Step 4: Simplify right side
    221,821.19x = 28,906,083,515.39
  5. Step 5: Solve for x
    x = 28,906,083,515.39/221,821.19
  6. Step 6: Final answer
    x = 130,312.54

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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.