Home / 139,289.28-192,213.94-75,625.72

Finding the Fourth Proportional to 139,289.28, 192,213.94 and 75,625.72

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Solution

The fourth proportional to 139,289.28, 192,213.94 and 75,625.72 is: 104,360.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,289.28 : 192,213.94 = 75,625.72 : x
  2. Step 2: Convert to fraction form
    139,289.28/192,213.94 = 75,625.72/x
  3. Step 3: Cross multiply
    139,289.28x = 192,213.94 × 75,625.72
  4. Step 4: Simplify right side
    139,289.28x = 14,536,317,606.54
  5. Step 5: Solve for x
    x = 14,536,317,606.54/139,289.28
  6. Step 6: Final answer
    x = 104,360.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.