Home / 221,724.20-332,586.30-81,464.60

Finding the Fourth Proportional to 221,724.20, 332,586.30 and 81,464.60

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Solution

The fourth proportional to 221,724.20, 332,586.30 and 81,464.60 is: 122,196.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,724.20 : 332,586.30 = 81,464.60 : x
  2. Step 2: Convert to fraction form
    221,724.20/332,586.30 = 81,464.60/x
  3. Step 3: Cross multiply
    221,724.20x = 332,586.30 × 81,464.60
  4. Step 4: Simplify right side
    221,724.20x = 27,094,009,894.98
  5. Step 5: Solve for x
    x = 27,094,009,894.98/221,724.20
  6. Step 6: Final answer
    x = 122,196.90

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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.