Home / 199,421.14-275,182.05-109,991.38

Finding the Fourth Proportional to 199,421.14, 275,182.05 and 109,991.38

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Solution

The fourth proportional to 199,421.14, 275,182.05 and 109,991.38 is: 151,777.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,421.14 : 275,182.05 = 109,991.38 : x
  2. Step 2: Convert to fraction form
    199,421.14/275,182.05 = 109,991.38/x
  3. Step 3: Cross multiply
    199,421.14x = 275,182.05 × 109,991.38
  4. Step 4: Simplify right side
    199,421.14x = 30,267,653,430.73
  5. Step 5: Solve for x
    x = 30,267,653,430.73/199,421.14
  6. Step 6: Final answer
    x = 151,777.56

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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.