Home / 208,952.80-313,289.92-75,815.76

Finding the Fourth Proportional to 208,952.80, 313,289.92 and 75,815.76

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Solution

The fourth proportional to 208,952.80, 313,289.92 and 75,815.76 is: 113,673.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,952.80 : 313,289.92 = 75,815.76 : x
  2. Step 2: Convert to fraction form
    208,952.80/313,289.92 = 75,815.76/x
  3. Step 3: Cross multiply
    208,952.80x = 313,289.92 × 75,815.76
  4. Step 4: Simplify right side
    208,952.80x = 23,752,313,385.14
  5. Step 5: Solve for x
    x = 23,752,313,385.14/208,952.80
  6. Step 6: Final answer
    x = 113,673.10

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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.