Home / 199,538.98-275,369.62-108,900.76

Finding the Fourth Proportional to 199,538.98, 275,369.62 and 108,900.76

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Solution

The fourth proportional to 199,538.98, 275,369.62 and 108,900.76 is: 150,286.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,538.98 : 275,369.62 = 108,900.76 : x
  2. Step 2: Convert to fraction form
    199,538.98/275,369.62 = 108,900.76/x
  3. Step 3: Cross multiply
    199,538.98x = 275,369.62 × 108,900.76
  4. Step 4: Simplify right side
    199,538.98x = 29,987,961,243.12
  5. Step 5: Solve for x
    x = 29,987,961,243.12/199,538.98
  6. Step 6: Final answer
    x = 150,286.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.