Home / 187,067.40-280,601.10-68,823.60

Finding the Fourth Proportional to 187,067.40, 280,601.10 and 68,823.60

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Solution

The fourth proportional to 187,067.40, 280,601.10 and 68,823.60 is: 103,235.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,067.40 : 280,601.10 = 68,823.60 : x
  2. Step 2: Convert to fraction form
    187,067.40/280,601.10 = 68,823.60/x
  3. Step 3: Cross multiply
    187,067.40x = 280,601.10 × 68,823.60
  4. Step 4: Simplify right side
    187,067.40x = 19,311,977,865.96
  5. Step 5: Solve for x
    x = 19,311,977,865.96/187,067.40
  6. Step 6: Final answer
    x = 103,235.40

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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.