Home / 168,102.08-231,977.82-91,621.88

Finding the Fourth Proportional to 168,102.08, 231,977.82 and 91,621.88

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Solution

The fourth proportional to 168,102.08, 231,977.82 and 91,621.88 is: 126,436.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,102.08 : 231,977.82 = 91,621.88 : x
  2. Step 2: Convert to fraction form
    168,102.08/231,977.82 = 91,621.88/x
  3. Step 3: Cross multiply
    168,102.08x = 231,977.82 × 91,621.88
  4. Step 4: Simplify right side
    168,102.08x = 21,254,243,986.70
  5. Step 5: Solve for x
    x = 21,254,243,986.70/168,102.08
  6. Step 6: Final answer
    x = 126,436.53

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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.