Home / 168,919.78-253,453.14-105,884.34

Finding the Fourth Proportional to 168,919.78, 253,453.14 and 105,884.34

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Solution

The fourth proportional to 168,919.78, 253,453.14 and 105,884.34 is: 158,872.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,919.78 : 253,453.14 = 105,884.34 : x
  2. Step 2: Convert to fraction form
    168,919.78/253,453.14 = 105,884.34/x
  3. Step 3: Cross multiply
    168,919.78x = 253,453.14 × 105,884.34
  4. Step 4: Simplify right side
    168,919.78x = 26,836,718,449.83
  5. Step 5: Solve for x
    x = 26,836,718,449.83/168,919.78
  6. Step 6: Final answer
    x = 158,872.56

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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.