Home / 221,772.80-332,703.04-71,985.28

Finding the Fourth Proportional to 221,772.80, 332,703.04 and 71,985.28

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Solution

The fourth proportional to 221,772.80, 332,703.04 and 71,985.28 is: 107,992.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,772.80 : 332,703.04 = 71,985.28 : x
  2. Step 2: Convert to fraction form
    221,772.80/332,703.04 = 71,985.28/x
  3. Step 3: Cross multiply
    221,772.80x = 332,703.04 × 71,985.28
  4. Step 4: Simplify right side
    221,772.80x = 23,949,721,491.25
  5. Step 5: Solve for x
    x = 23,949,721,491.25/221,772.80
  6. Step 6: Final answer
    x = 107,992.15

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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.