Home / 209,227.20-313,840.80-76,111.80

Finding the Fourth Proportional to 209,227.20, 313,840.80 and 76,111.80

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Solution

The fourth proportional to 209,227.20, 313,840.80 and 76,111.80 is: 114,167.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,227.20 : 313,840.80 = 76,111.80 : x
  2. Step 2: Convert to fraction form
    209,227.20/313,840.80 = 76,111.80/x
  3. Step 3: Cross multiply
    209,227.20x = 313,840.80 × 76,111.80
  4. Step 4: Simplify right side
    209,227.20x = 23,886,988,201.44
  5. Step 5: Solve for x
    x = 23,886,988,201.44/209,227.20
  6. Step 6: Final answer
    x = 114,167.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.