Home / 187,286.72-280,887.96-54,137.30

Finding the Fourth Proportional to 187,286.72, 280,887.96 and 54,137.30

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Solution

The fourth proportional to 187,286.72, 280,887.96 and 54,137.30 is: 81,193.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,286.72 : 280,887.96 = 54,137.30 : x
  2. Step 2: Convert to fraction form
    187,286.72/280,887.96 = 54,137.30/x
  3. Step 3: Cross multiply
    187,286.72x = 280,887.96 × 54,137.30
  4. Step 4: Simplify right side
    187,286.72x = 15,206,515,756.91
  5. Step 5: Solve for x
    x = 15,206,515,756.91/187,286.72
  6. Step 6: Final answer
    x = 81,193.77

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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.