Home / 108,786.11-163,187.06-45,542.62

Finding the Fourth Proportional to 108,786.11, 163,187.06 and 45,542.62

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Solution

The fourth proportional to 108,786.11, 163,187.06 and 45,542.62 is: 68,317.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,786.11 : 163,187.06 = 45,542.62 : x
  2. Step 2: Convert to fraction form
    108,786.11/163,187.06 = 45,542.62/x
  3. Step 3: Cross multiply
    108,786.11x = 163,187.06 × 45,542.62
  4. Step 4: Simplify right side
    108,786.11x = 7,431,965,626.82
  5. Step 5: Solve for x
    x = 7,431,965,626.82/108,786.11
  6. Step 6: Final answer
    x = 68,317.23

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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.