Home / 109,198.80-163,837.62-38,131.91

Finding the Fourth Proportional to 109,198.80, 163,837.62 and 38,131.91

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Solution

The fourth proportional to 109,198.80, 163,837.62 and 38,131.91 is: 57,211.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,198.80 : 163,837.62 = 38,131.91 : x
  2. Step 2: Convert to fraction form
    109,198.80/163,837.62 = 38,131.91/x
  3. Step 3: Cross multiply
    109,198.80x = 163,837.62 × 38,131.91
  4. Step 4: Simplify right side
    109,198.80x = 6,247,442,097.24
  5. Step 5: Solve for x
    x = 6,247,442,097.24/109,198.80
  6. Step 6: Final answer
    x = 57,211.64

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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.