Home / 221,764.80-332,691.04-71,977.28

Finding the Fourth Proportional to 221,764.80, 332,691.04 and 71,977.28

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Solution

The fourth proportional to 221,764.80, 332,691.04 and 71,977.28 is: 107,980.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,764.80 : 332,691.04 = 71,977.28 : x
  2. Step 2: Convert to fraction form
    221,764.80/332,691.04 = 71,977.28/x
  3. Step 3: Cross multiply
    221,764.80x = 332,691.04 × 71,977.28
  4. Step 4: Simplify right side
    221,764.80x = 23,946,196,139.57
  5. Step 5: Solve for x
    x = 23,946,196,139.57/221,764.80
  6. Step 6: Final answer
    x = 107,980.15

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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.