Home / 128,323.03-192,517.32-53,418.28

Finding the Fourth Proportional to 128,323.03, 192,517.32 and 53,418.28

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Solution

The fourth proportional to 128,323.03, 192,517.32 and 53,418.28 is: 80,141.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,323.03 : 192,517.32 = 53,418.28 : x
  2. Step 2: Convert to fraction form
    128,323.03/192,517.32 = 53,418.28/x
  3. Step 3: Cross multiply
    128,323.03x = 192,517.32 × 53,418.28
  4. Step 4: Simplify right side
    128,323.03x = 10,283,944,104.61
  5. Step 5: Solve for x
    x = 10,283,944,104.61/128,323.03
  6. Step 6: Final answer
    x = 80,141.06

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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.