Home / 168,090.91-231,966.53-92,639.41

Finding the Fourth Proportional to 168,090.91, 231,966.53 and 92,639.41

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Solution

The fourth proportional to 168,090.91, 231,966.53 and 92,639.41 is: 127,842.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,090.91 : 231,966.53 = 92,639.41 : x
  2. Step 2: Convert to fraction form
    168,090.91/231,966.53 = 92,639.41/x
  3. Step 3: Cross multiply
    168,090.91x = 231,966.53 × 92,639.41
  4. Step 4: Simplify right side
    168,090.91x = 21,489,242,015.75
  5. Step 5: Solve for x
    x = 21,489,242,015.75/168,090.91
  6. Step 6: Final answer
    x = 127,842.98

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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.