Home / 115,240.12-172,591.56-111,249.16

Finding the Fourth Proportional to 115,240.12, 172,591.56 and 111,249.16

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Solution

The fourth proportional to 115,240.12, 172,591.56 and 111,249.16 is: 166,614.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,240.12 : 172,591.56 = 111,249.16 : x
  2. Step 2: Convert to fraction form
    115,240.12/172,591.56 = 111,249.16/x
  3. Step 3: Cross multiply
    115,240.12x = 172,591.56 × 111,249.16
  4. Step 4: Simplify right side
    115,240.12x = 19,200,666,073.09
  5. Step 5: Solve for x
    x = 19,200,666,073.09/115,240.12
  6. Step 6: Final answer
    x = 166,614.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.