Home / 199,400.12-275,016.56-127,786.80

Finding the Fourth Proportional to 199,400.12, 275,016.56 and 127,786.80

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Solution

The fourth proportional to 199,400.12, 275,016.56 and 127,786.80 is: 176,246.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,400.12 : 275,016.56 = 127,786.80 : x
  2. Step 2: Convert to fraction form
    199,400.12/275,016.56 = 127,786.80/x
  3. Step 3: Cross multiply
    199,400.12x = 275,016.56 × 127,786.80
  4. Step 4: Simplify right side
    199,400.12x = 35,143,486,149.41
  5. Step 5: Solve for x
    x = 35,143,486,149.41/199,400.12
  6. Step 6: Final answer
    x = 176,246.06

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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.