Home / 221,752.32-332,759.70-81,609.36

Finding the Fourth Proportional to 221,752.32, 332,759.70 and 81,609.36

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Solution

The fourth proportional to 221,752.32, 332,759.70 and 81,609.36 is: 122,462.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,752.32 : 332,759.70 = 81,609.36 : x
  2. Step 2: Convert to fraction form
    221,752.32/332,759.70 = 81,609.36/x
  3. Step 3: Cross multiply
    221,752.32x = 332,759.70 × 81,609.36
  4. Step 4: Simplify right side
    221,752.32x = 27,156,306,150.79
  5. Step 5: Solve for x
    x = 27,156,306,150.79/221,752.32
  6. Step 6: Final answer
    x = 122,462.33

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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.