Home / 192,104.20-287,789.10-103,328.20

Finding the Fourth Proportional to 192,104.20, 287,789.10 and 103,328.20

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Solution

The fourth proportional to 192,104.20, 287,789.10 and 103,328.20 is: 154,794.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,104.20 : 287,789.10 = 103,328.20 : x
  2. Step 2: Convert to fraction form
    192,104.20/287,789.10 = 103,328.20/x
  3. Step 3: Cross multiply
    192,104.20x = 287,789.10 × 103,328.20
  4. Step 4: Simplify right side
    192,104.20x = 29,736,729,682.62
  5. Step 5: Solve for x
    x = 29,736,729,682.62/192,104.20
  6. Step 6: Final answer
    x = 154,794.79

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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.