Home / 209,286.74-288,814.19-113,793.50

Finding the Fourth Proportional to 209,286.74, 288,814.19 and 113,793.50

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Solution

The fourth proportional to 209,286.74, 288,814.19 and 113,793.50 is: 157,034.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,286.74 : 288,814.19 = 113,793.50 : x
  2. Step 2: Convert to fraction form
    209,286.74/288,814.19 = 113,793.50/x
  3. Step 3: Cross multiply
    209,286.74x = 288,814.19 × 113,793.50
  4. Step 4: Simplify right side
    209,286.74x = 32,865,177,529.77
  5. Step 5: Solve for x
    x = 32,865,177,529.77/209,286.74
  6. Step 6: Final answer
    x = 157,034.21

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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.