Home / 187,396.20-280,511.10-108,275.40

Finding the Fourth Proportional to 187,396.20, 280,511.10 and 108,275.40

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Solution

The fourth proportional to 187,396.20, 280,511.10 and 108,275.40 is: 162,076.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,396.20 : 280,511.10 = 108,275.40 : x
  2. Step 2: Convert to fraction form
    187,396.20/280,511.10 = 108,275.40/x
  3. Step 3: Cross multiply
    187,396.20x = 280,511.10 × 108,275.40
  4. Step 4: Simplify right side
    187,396.20x = 30,372,451,556.94
  5. Step 5: Solve for x
    x = 30,372,451,556.94/187,396.20
  6. Step 6: Final answer
    x = 162,076.13

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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.