Home / 168,738.35-253,112.07-73,919.75

Finding the Fourth Proportional to 168,738.35, 253,112.07 and 73,919.75

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Solution

The fourth proportional to 168,738.35, 253,112.07 and 73,919.75 is: 110,881.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,738.35 : 253,112.07 = 73,919.75 : x
  2. Step 2: Convert to fraction form
    168,738.35/253,112.07 = 73,919.75/x
  3. Step 3: Cross multiply
    168,738.35x = 253,112.07 × 73,919.75
  4. Step 4: Simplify right side
    168,738.35x = 18,709,980,936.38
  5. Step 5: Solve for x
    x = 18,709,980,936.38/168,738.35
  6. Step 6: Final answer
    x = 110,881.62

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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.