Home / 221,637.63-332,355.30-79,427.96

Finding the Fourth Proportional to 221,637.63, 332,355.30 and 79,427.96

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Solution

The fourth proportional to 221,637.63, 332,355.30 and 79,427.96 is: 119,105.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,637.63 : 332,355.30 = 79,427.96 : x
  2. Step 2: Convert to fraction form
    221,637.63/332,355.30 = 79,427.96/x
  3. Step 3: Cross multiply
    221,637.63x = 332,355.30 × 79,427.96
  4. Step 4: Simplify right side
    221,637.63x = 26,398,302,760.89
  5. Step 5: Solve for x
    x = 26,398,302,760.89/221,637.63
  6. Step 6: Final answer
    x = 119,105.69

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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.