Home / 118,821.88-178,232.82-47,776.96

Finding the Fourth Proportional to 118,821.88, 178,232.82 and 47,776.96

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Solution

The fourth proportional to 118,821.88, 178,232.82 and 47,776.96 is: 71,665.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,821.88 : 178,232.82 = 47,776.96 : x
  2. Step 2: Convert to fraction form
    118,821.88/178,232.82 = 47,776.96/x
  3. Step 3: Cross multiply
    118,821.88x = 178,232.82 × 47,776.96
  4. Step 4: Simplify right side
    118,821.88x = 8,515,422,311.83
  5. Step 5: Solve for x
    x = 8,515,422,311.83/118,821.88
  6. Step 6: Final answer
    x = 71,665.44

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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.