Home / 120,982.08-181,016.82-108,704.28

Finding the Fourth Proportional to 120,982.08, 181,016.82 and 108,704.28

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Solution

The fourth proportional to 120,982.08, 181,016.82 and 108,704.28 is: 162,646.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,982.08 : 181,016.82 = 108,704.28 : x
  2. Step 2: Convert to fraction form
    120,982.08/181,016.82 = 108,704.28/x
  3. Step 3: Cross multiply
    120,982.08x = 181,016.82 × 108,704.28
  4. Step 4: Simplify right side
    120,982.08x = 19,677,303,085.99
  5. Step 5: Solve for x
    x = 19,677,303,085.99/120,982.08
  6. Step 6: Final answer
    x = 162,646.43

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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.