Home / 108,905.09-163,380.31-34,022.21

Finding the Fourth Proportional to 108,905.09, 163,380.31 and 34,022.21

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Solution

The fourth proportional to 108,905.09, 163,380.31 and 34,022.21 is: 51,040.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,905.09 : 163,380.31 = 34,022.21 : x
  2. Step 2: Convert to fraction form
    108,905.09/163,380.31 = 34,022.21/x
  3. Step 3: Cross multiply
    108,905.09x = 163,380.31 × 34,022.21
  4. Step 4: Simplify right side
    108,905.09x = 5,558,558,314.73
  5. Step 5: Solve for x
    x = 5,558,558,314.73/108,905.09
  6. Step 6: Final answer
    x = 51,040.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.