Home / 209,190.45-288,682.86-113,697.15

Finding the Fourth Proportional to 209,190.45, 288,682.86 and 113,697.15

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Solution

The fourth proportional to 209,190.45, 288,682.86 and 113,697.15 is: 156,902.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,190.45 : 288,682.86 = 113,697.15 : x
  2. Step 2: Convert to fraction form
    209,190.45/288,682.86 = 113,697.15/x
  3. Step 3: Cross multiply
    209,190.45x = 288,682.86 × 113,697.15
  4. Step 4: Simplify right side
    209,190.45x = 32,822,418,435.85
  5. Step 5: Solve for x
    x = 32,822,418,435.85/209,190.45
  6. Step 6: Final answer
    x = 156,902.09

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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.