Home / 128,267.87-192,232.31-92,847.60

Finding the Fourth Proportional to 128,267.87, 192,232.31 and 92,847.60

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Solution

The fourth proportional to 128,267.87, 192,232.31 and 92,847.60 is: 139,148.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,267.87 : 192,232.31 = 92,847.60 : x
  2. Step 2: Convert to fraction form
    128,267.87/192,232.31 = 92,847.60/x
  3. Step 3: Cross multiply
    128,267.87x = 192,232.31 × 92,847.60
  4. Step 4: Simplify right side
    128,267.87x = 17,848,308,161.72
  5. Step 5: Solve for x
    x = 17,848,308,161.72/128,267.87
  6. Step 6: Final answer
    x = 139,148.71

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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.