Home / 209,120.42-288,587.94-113,627.12

Finding the Fourth Proportional to 209,120.42, 288,587.94 and 113,627.12

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Solution

The fourth proportional to 209,120.42, 288,587.94 and 113,627.12 is: 156,806.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,120.42 : 288,587.94 = 113,627.12 : x
  2. Step 2: Convert to fraction form
    209,120.42/288,587.94 = 113,627.12/x
  3. Step 3: Cross multiply
    209,120.42x = 288,587.94 × 113,627.12
  4. Step 4: Simplify right side
    209,120.42x = 32,791,416,488.93
  5. Step 5: Solve for x
    x = 32,791,416,488.93/209,120.42
  6. Step 6: Final answer
    x = 156,806.38

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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.