Home / 168,621.96-232,806.78-108,218.64

Finding the Fourth Proportional to 168,621.96, 232,806.78 and 108,218.64

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Solution

The fourth proportional to 168,621.96, 232,806.78 and 108,218.64 is: 149,411.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,621.96 : 232,806.78 = 108,218.64 : x
  2. Step 2: Convert to fraction form
    168,621.96/232,806.78 = 108,218.64/x
  3. Step 3: Cross multiply
    168,621.96x = 232,806.78 × 108,218.64
  4. Step 4: Simplify right side
    168,621.96x = 25,194,033,114.38
  5. Step 5: Solve for x
    x = 25,194,033,114.38/168,621.96
  6. Step 6: Final answer
    x = 149,411.34

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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.