Home / 118,820.88-178,231.32-47,775.96

Finding the Fourth Proportional to 118,820.88, 178,231.32 and 47,775.96

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Solution

The fourth proportional to 118,820.88, 178,231.32 and 47,775.96 is: 71,663.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,820.88 : 178,231.32 = 47,775.96 : x
  2. Step 2: Convert to fraction form
    118,820.88/178,231.32 = 47,775.96/x
  3. Step 3: Cross multiply
    118,820.88x = 178,231.32 × 47,775.96
  4. Step 4: Simplify right side
    118,820.88x = 8,515,172,415.07
  5. Step 5: Solve for x
    x = 8,515,172,415.07/118,820.88
  6. Step 6: Final answer
    x = 71,663.94

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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.