Home / 209,063.22-288,510.33-113,571.78

Finding the Fourth Proportional to 209,063.22, 288,510.33 and 113,571.78

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Solution

The fourth proportional to 209,063.22, 288,510.33 and 113,571.78 is: 156,730.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,063.22 : 288,510.33 = 113,571.78 : x
  2. Step 2: Convert to fraction form
    209,063.22/288,510.33 = 113,571.78/x
  3. Step 3: Cross multiply
    209,063.22x = 288,510.33 × 113,571.78
  4. Step 4: Simplify right side
    209,063.22x = 32,766,631,726.49
  5. Step 5: Solve for x
    x = 32,766,631,726.49/209,063.22
  6. Step 6: Final answer
    x = 156,730.73

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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.