Home / 113,515.52-170,010.83-109,578.92

Finding the Fourth Proportional to 113,515.52, 170,010.83 and 109,578.92

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Solution

The fourth proportional to 113,515.52, 170,010.83 and 109,578.92 is: 164,115.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,515.52 : 170,010.83 = 109,578.92 : x
  2. Step 2: Convert to fraction form
    113,515.52/170,010.83 = 109,578.92/x
  3. Step 3: Cross multiply
    113,515.52x = 170,010.83 × 109,578.92
  4. Step 4: Simplify right side
    113,515.52x = 18,629,601,741.75
  5. Step 5: Solve for x
    x = 18,629,601,741.75/113,515.52
  6. Step 6: Final answer
    x = 164,115.03

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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.