Home / 209,191.45-288,684.24-113,698.15

Finding the Fourth Proportional to 209,191.45, 288,684.24 and 113,698.15

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Solution

The fourth proportional to 209,191.45, 288,684.24 and 113,698.15 is: 156,903.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,191.45 : 288,684.24 = 113,698.15 : x
  2. Step 2: Convert to fraction form
    209,191.45/288,684.24 = 113,698.15/x
  3. Step 3: Cross multiply
    209,191.45x = 288,684.24 × 113,698.15
  4. Step 4: Simplify right side
    209,191.45x = 32,822,864,022.16
  5. Step 5: Solve for x
    x = 32,822,864,022.16/209,191.45
  6. Step 6: Final answer
    x = 156,903.47

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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.