Home / 209,225.91-288,731.97-113,732.61

Finding the Fourth Proportional to 209,225.91, 288,731.97 and 113,732.61

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Solution

The fourth proportional to 209,225.91, 288,731.97 and 113,732.61 is: 156,951.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,225.91 : 288,731.97 = 113,732.61 : x
  2. Step 2: Convert to fraction form
    209,225.91/288,731.97 = 113,732.61/x
  3. Step 3: Cross multiply
    209,225.91x = 288,731.97 × 113,732.61
  4. Step 4: Simplify right side
    209,225.91x = 32,838,240,538.54
  5. Step 5: Solve for x
    x = 32,838,240,538.54/209,225.91
  6. Step 6: Final answer
    x = 156,951.12

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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.