Home / 118,914.75-178,246.44-43,986.78

Finding the Fourth Proportional to 118,914.75, 178,246.44 and 43,986.78

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Solution

The fourth proportional to 118,914.75, 178,246.44 and 43,986.78 is: 65,933.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,914.75 : 178,246.44 = 43,986.78 : x
  2. Step 2: Convert to fraction form
    118,914.75/178,246.44 = 43,986.78/x
  3. Step 3: Cross multiply
    118,914.75x = 178,246.44 × 43,986.78
  4. Step 4: Simplify right side
    118,914.75x = 7,840,486,942.06
  5. Step 5: Solve for x
    x = 7,840,486,942.06/118,914.75
  6. Step 6: Final answer
    x = 65,933.68

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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.