Home / 209,198.10-288,695.14-113,704.78

Finding the Fourth Proportional to 209,198.10, 288,695.14 and 113,704.78

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Solution

The fourth proportional to 209,198.10, 288,695.14 and 113,704.78 is: 156,913.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,198.10 : 288,695.14 = 113,704.78 : x
  2. Step 2: Convert to fraction form
    209,198.10/288,695.14 = 113,704.78/x
  3. Step 3: Cross multiply
    209,198.10x = 288,695.14 × 113,704.78
  4. Step 4: Simplify right side
    209,198.10x = 32,826,017,380.77
  5. Step 5: Solve for x
    x = 32,826,017,380.77/209,198.10
  6. Step 6: Final answer
    x = 156,913.55

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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.