Home / 118,720.38-178,089.78-34,481.90

Finding the Fourth Proportional to 118,720.38, 178,089.78 and 34,481.90

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Solution

The fourth proportional to 118,720.38, 178,089.78 and 34,481.90 is: 51,725.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,720.38 : 178,089.78 = 34,481.90 : x
  2. Step 2: Convert to fraction form
    118,720.38/178,089.78 = 34,481.90/x
  3. Step 3: Cross multiply
    118,720.38x = 178,089.78 × 34,481.90
  4. Step 4: Simplify right side
    118,720.38x = 6,140,873,984.98
  5. Step 5: Solve for x
    x = 6,140,873,984.98/118,720.38
  6. Step 6: Final answer
    x = 51,725.53

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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.