Home / 209,739.16-289,443.42-114,245.92

Finding the Fourth Proportional to 209,739.16, 289,443.42 and 114,245.92

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Solution

The fourth proportional to 209,739.16, 289,443.42 and 114,245.92 is: 157,661.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,739.16 : 289,443.42 = 114,245.92 : x
  2. Step 2: Convert to fraction form
    209,739.16/289,443.42 = 114,245.92/x
  3. Step 3: Cross multiply
    209,739.16x = 289,443.42 × 114,245.92
  4. Step 4: Simplify right side
    209,739.16x = 33,067,729,805.85
  5. Step 5: Solve for x
    x = 33,067,729,805.85/209,739.16
  6. Step 6: Final answer
    x = 157,661.21

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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.