Home / 199,389.14-275,149.40-109,965.14

Finding the Fourth Proportional to 199,389.14, 275,149.40 and 109,965.14

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Solution

The fourth proportional to 199,389.14, 275,149.40 and 109,965.14 is: 151,747.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,389.14 : 275,149.40 = 109,965.14 : x
  2. Step 2: Convert to fraction form
    199,389.14/275,149.40 = 109,965.14/x
  3. Step 3: Cross multiply
    199,389.14x = 275,149.40 × 109,965.14
  4. Step 4: Simplify right side
    199,389.14x = 30,256,842,291.92
  5. Step 5: Solve for x
    x = 30,256,842,291.92/199,389.14
  6. Step 6: Final answer
    x = 151,747.69

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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.