Home / 108,059.10-161,991.45-68,595.90

Finding the Fourth Proportional to 108,059.10, 161,991.45 and 68,595.90

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Solution

The fourth proportional to 108,059.10, 161,991.45 and 68,595.90 is: 102,832.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,059.10 : 161,991.45 = 68,595.90 : x
  2. Step 2: Convert to fraction form
    108,059.10/161,991.45 = 68,595.90/x
  3. Step 3: Cross multiply
    108,059.10x = 161,991.45 × 68,595.90
  4. Step 4: Simplify right side
    108,059.10x = 11,111,949,305.06
  5. Step 5: Solve for x
    x = 11,111,949,305.06/108,059.10
  6. Step 6: Final answer
    x = 102,832.15

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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.