Home / 208,947.20-313,625.60-103,884.80

Finding the Fourth Proportional to 208,947.20, 313,625.60 and 103,884.80

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Solution

The fourth proportional to 208,947.20, 313,625.60 and 103,884.80 is: 155,929.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,947.20 : 313,625.60 = 103,884.80 : x
  2. Step 2: Convert to fraction form
    208,947.20/313,625.60 = 103,884.80/x
  3. Step 3: Cross multiply
    208,947.20x = 313,625.60 × 103,884.80
  4. Step 4: Simplify right side
    208,947.20x = 32,580,932,730.88
  5. Step 5: Solve for x
    x = 32,580,932,730.88/208,947.20
  6. Step 6: Final answer
    x = 155,929.02

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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.