Home / 77,180.44-115,807.92-67,204.12

Finding the Fourth Proportional to 77,180.44, 115,807.92 and 67,204.12

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Solution

The fourth proportional to 77,180.44, 115,807.92 and 67,204.12 is: 100,838.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,180.44 : 115,807.92 = 67,204.12 : x
  2. Step 2: Convert to fraction form
    77,180.44/115,807.92 = 67,204.12/x
  3. Step 3: Cross multiply
    77,180.44x = 115,807.92 × 67,204.12
  4. Step 4: Simplify right side
    77,180.44x = 7,782,769,352.63
  5. Step 5: Solve for x
    x = 7,782,769,352.63/77,180.44
  6. Step 6: Final answer
    x = 100,838.62

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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.