Home / 221,895.20-332,842.80-81,635.60

Finding the Fourth Proportional to 221,895.20, 332,842.80 and 81,635.60

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Solution

The fourth proportional to 221,895.20, 332,842.80 and 81,635.60 is: 122,453.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,895.20 : 332,842.80 = 81,635.60 : x
  2. Step 2: Convert to fraction form
    221,895.20/332,842.80 = 81,635.60/x
  3. Step 3: Cross multiply
    221,895.20x = 332,842.80 × 81,635.60
  4. Step 4: Simplify right side
    221,895.20x = 27,171,821,683.68
  5. Step 5: Solve for x
    x = 27,171,821,683.68/221,895.20
  6. Step 6: Final answer
    x = 122,453.40

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1.5x scale

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.