Home / 128,150.73-192,163.23-74,856.09

Finding the Fourth Proportional to 128,150.73, 192,163.23 and 74,856.09

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Solution

The fourth proportional to 128,150.73, 192,163.23 and 74,856.09 is: 112,247.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,150.73 : 192,163.23 = 74,856.09 : x
  2. Step 2: Convert to fraction form
    128,150.73/192,163.23 = 74,856.09/x
  3. Step 3: Cross multiply
    128,150.73x = 192,163.23 × 74,856.09
  4. Step 4: Simplify right side
    128,150.73x = 14,384,588,039.57
  5. Step 5: Solve for x
    x = 14,384,588,039.57/128,150.73
  6. Step 6: Final answer
    x = 112,247.41

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1.5x scale

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.