Home / 128,634.45-192,916.83-53,738.93

Finding the Fourth Proportional to 128,634.45, 192,916.83 and 53,738.93

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Solution

The fourth proportional to 128,634.45, 192,916.83 and 53,738.93 is: 80,593.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,634.45 : 192,916.83 = 53,738.93 : x
  2. Step 2: Convert to fraction form
    128,634.45/192,916.83 = 53,738.93/x
  3. Step 3: Cross multiply
    128,634.45x = 192,916.83 × 53,738.93
  4. Step 4: Simplify right side
    128,634.45x = 10,367,144,023.19
  5. Step 5: Solve for x
    x = 10,367,144,023.19/128,634.45
  6. Step 6: Final answer
    x = 80,593.84

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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.