Home / 221,749.12-332,618.94-71,989.20

Finding the Fourth Proportional to 221,749.12, 332,618.94 and 71,989.20

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Solution

The fourth proportional to 221,749.12, 332,618.94 and 71,989.20 is: 107,982.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,749.12 : 332,618.94 = 71,989.20 : x
  2. Step 2: Convert to fraction form
    221,749.12/332,618.94 = 71,989.20/x
  3. Step 3: Cross multiply
    221,749.12x = 332,618.94 × 71,989.20
  4. Step 4: Simplify right side
    221,749.12x = 23,944,971,395.45
  5. Step 5: Solve for x
    x = 23,944,971,395.45/221,749.12
  6. Step 6: Final answer
    x = 107,982.26

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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.