Home / 187,175.10-280,731.88-67,207.20

Finding the Fourth Proportional to 187,175.10, 280,731.88 and 67,207.20

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Solution

The fourth proportional to 187,175.10, 280,731.88 and 67,207.20 is: 100,799.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,175.10 : 280,731.88 = 67,207.20 : x
  2. Step 2: Convert to fraction form
    187,175.10/280,731.88 = 67,207.20/x
  3. Step 3: Cross multiply
    187,175.10x = 280,731.88 × 67,207.20
  4. Step 4: Simplify right side
    187,175.10x = 18,867,203,605.54
  5. Step 5: Solve for x
    x = 18,867,203,605.54/187,175.10
  6. Step 6: Final answer
    x = 100,799.75

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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.