Home / 168,940.20-233,100.27-100,947

Finding the Fourth Proportional to 168,940.20, 233,100.27 and 100,947

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Solution

The fourth proportional to 168,940.20, 233,100.27 and 100,947 is: 139,284.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,940.20 : 233,100.27 = 100,947 : x
  2. Step 2: Convert to fraction form
    168,940.20/233,100.27 = 100,947/x
  3. Step 3: Cross multiply
    168,940.20x = 233,100.27 × 100,947
  4. Step 4: Simplify right side
    168,940.20x = 23,530,772,955.69
  5. Step 5: Solve for x
    x = 23,530,772,955.69/168,940.20
  6. Step 6: Final answer
    x = 139,284.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.