Home / 221,989.60-332,984.40-109,723.60

Finding the Fourth Proportional to 221,989.60, 332,984.40 and 109,723.60

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Solution

The fourth proportional to 221,989.60, 332,984.40 and 109,723.60 is: 164,585.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,989.60 : 332,984.40 = 109,723.60 : x
  2. Step 2: Convert to fraction form
    221,989.60/332,984.40 = 109,723.60/x
  3. Step 3: Cross multiply
    221,989.60x = 332,984.40 × 109,723.60
  4. Step 4: Simplify right side
    221,989.60x = 36,536,247,111.84
  5. Step 5: Solve for x
    x = 36,536,247,111.84/221,989.60
  6. Step 6: Final answer
    x = 164,585.40

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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.