Home / 209,198.90-288,694.85-113,705.34

Finding the Fourth Proportional to 209,198.90, 288,694.85 and 113,705.34

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Solution

The fourth proportional to 209,198.90, 288,694.85 and 113,705.34 is: 156,913.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,198.90 : 288,694.85 = 113,705.34 : x
  2. Step 2: Convert to fraction form
    209,198.90/288,694.85 = 113,705.34/x
  3. Step 3: Cross multiply
    209,198.90x = 288,694.85 × 113,705.34
  4. Step 4: Simplify right side
    209,198.90x = 32,826,145,506.97
  5. Step 5: Solve for x
    x = 32,826,145,506.97/209,198.90
  6. Step 6: Final answer
    x = 156,913.57

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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.