Home / 209,219.92-288,723.68-113,726.61

Finding the Fourth Proportional to 209,219.92, 288,723.68 and 113,726.61

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Solution

The fourth proportional to 209,219.92, 288,723.68 and 113,726.61 is: 156,942.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,219.92 : 288,723.68 = 113,726.61 : x
  2. Step 2: Convert to fraction form
    209,219.92/288,723.68 = 113,726.61/x
  3. Step 3: Cross multiply
    209,219.92x = 288,723.68 × 113,726.61
  4. Step 4: Simplify right side
    209,219.92x = 32,835,565,210.97
  5. Step 5: Solve for x
    x = 32,835,565,210.97/209,219.92
  6. Step 6: Final answer
    x = 156,942.83

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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.