Home / 209,129.43-288,600.38-113,636.14

Finding the Fourth Proportional to 209,129.43, 288,600.38 and 113,636.14

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Solution

The fourth proportional to 209,129.43, 288,600.38 and 113,636.14 is: 156,818.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,129.43 : 288,600.38 = 113,636.14 : x
  2. Step 2: Convert to fraction form
    209,129.43/288,600.38 = 113,636.14/x
  3. Step 3: Cross multiply
    209,129.43x = 288,600.38 × 113,636.14
  4. Step 4: Simplify right side
    209,129.43x = 32,795,431,896.05
  5. Step 5: Solve for x
    x = 32,795,431,896.05/209,129.43
  6. Step 6: Final answer
    x = 156,818.83

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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.