Home / 128,301.87-192,453.05-49,453.23

Finding the Fourth Proportional to 128,301.87, 192,453.05 and 49,453.23

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Solution

The fourth proportional to 128,301.87, 192,453.05 and 49,453.23 is: 74,179.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,301.87 : 192,453.05 = 49,453.23 : x
  2. Step 2: Convert to fraction form
    128,301.87/192,453.05 = 49,453.23/x
  3. Step 3: Cross multiply
    128,301.87x = 192,453.05 × 49,453.23
  4. Step 4: Simplify right side
    128,301.87x = 9,517,424,698.59
  5. Step 5: Solve for x
    x = 9,517,424,698.59/128,301.87
  6. Step 6: Final answer
    x = 74,179.94

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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.