Home / 167,871.02-231,654.43-91,388.15

Finding the Fourth Proportional to 167,871.02, 231,654.43 and 91,388.15

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Solution

The fourth proportional to 167,871.02, 231,654.43 and 91,388.15 is: 126,111.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,871.02 : 231,654.43 = 91,388.15 : x
  2. Step 2: Convert to fraction form
    167,871.02/231,654.43 = 91,388.15/x
  3. Step 3: Cross multiply
    167,871.02x = 231,654.43 × 91,388.15
  4. Step 4: Simplify right side
    167,871.02x = 21,170,469,621.67
  5. Step 5: Solve for x
    x = 21,170,469,621.67/167,871.02
  6. Step 6: Final answer
    x = 126,111.52

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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.