Home / 221,749.11-332,618.96-71,989.19

Finding the Fourth Proportional to 221,749.11, 332,618.96 and 71,989.19

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Solution

The fourth proportional to 221,749.11, 332,618.96 and 71,989.19 is: 107,982.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,749.11 : 332,618.96 = 71,989.19 : x
  2. Step 2: Convert to fraction form
    221,749.11/332,618.96 = 71,989.19/x
  3. Step 3: Cross multiply
    221,749.11x = 332,618.96 × 71,989.19
  4. Step 4: Simplify right side
    221,749.11x = 23,944,967,486.00
  5. Step 5: Solve for x
    x = 23,944,967,486.00/221,749.11
  6. Step 6: Final answer
    x = 107,982.25

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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.