Home / 221,855.20-332,815.56-81,603.52

Finding the Fourth Proportional to 221,855.20, 332,815.56 and 81,603.52

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Solution

The fourth proportional to 221,855.20, 332,815.56 and 81,603.52 is: 122,417.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,855.20 : 332,815.56 = 81,603.52 : x
  2. Step 2: Convert to fraction form
    221,855.20/332,815.56 = 81,603.52/x
  3. Step 3: Cross multiply
    221,855.20x = 332,815.56 × 81,603.52
  4. Step 4: Simplify right side
    221,855.20x = 27,158,921,206.77
  5. Step 5: Solve for x
    x = 27,158,921,206.77/221,855.20
  6. Step 6: Final answer
    x = 122,417.33

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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.