Home / 209,103.28-288,562.83-113,609.95

Finding the Fourth Proportional to 209,103.28, 288,562.83 and 113,609.95

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Solution

The fourth proportional to 209,103.28, 288,562.83 and 113,609.95 is: 156,781.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,103.28 : 288,562.83 = 113,609.95 : x
  2. Step 2: Convert to fraction form
    209,103.28/288,562.83 = 113,609.95/x
  3. Step 3: Cross multiply
    209,103.28x = 288,562.83 × 113,609.95
  4. Step 4: Simplify right side
    209,103.28x = 32,783,608,688.16
  5. Step 5: Solve for x
    x = 32,783,608,688.16/209,103.28
  6. Step 6: Final answer
    x = 156,781.90

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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.