Home / 128,582.56-192,904.62-53,661.04

Finding the Fourth Proportional to 128,582.56, 192,904.62 and 53,661.04

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Solution

The fourth proportional to 128,582.56, 192,904.62 and 53,661.04 is: 80,504.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,582.56 : 192,904.62 = 53,661.04 : x
  2. Step 2: Convert to fraction form
    128,582.56/192,904.62 = 53,661.04/x
  3. Step 3: Cross multiply
    128,582.56x = 192,904.62 × 53,661.04
  4. Step 4: Simplify right side
    128,582.56x = 10,351,462,530.00
  5. Step 5: Solve for x
    x = 10,351,462,530.00/128,582.56
  6. Step 6: Final answer
    x = 80,504.41

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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.