Home / 108,081.48-161,790.04-92,138.28

Finding the Fourth Proportional to 108,081.48, 161,790.04 and 92,138.28

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Solution

The fourth proportional to 108,081.48, 161,790.04 and 92,138.28 is: 137,924.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,081.48 : 161,790.04 = 92,138.28 : x
  2. Step 2: Convert to fraction form
    108,081.48/161,790.04 = 92,138.28/x
  3. Step 3: Cross multiply
    108,081.48x = 161,790.04 × 92,138.28
  4. Step 4: Simplify right side
    108,081.48x = 14,907,056,006.73
  5. Step 5: Solve for x
    x = 14,907,056,006.73/108,081.48
  6. Step 6: Final answer
    x = 137,924.24

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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.