Home / 147,843.36-204,023.52-80,775.36

Finding the Fourth Proportional to 147,843.36, 204,023.52 and 80,775.36

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Solution

The fourth proportional to 147,843.36, 204,023.52 and 80,775.36 is: 111,469.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,843.36 : 204,023.52 = 80,775.36 : x
  2. Step 2: Convert to fraction form
    147,843.36/204,023.52 = 80,775.36/x
  3. Step 3: Cross multiply
    147,843.36x = 204,023.52 × 80,775.36
  4. Step 4: Simplify right side
    147,843.36x = 16,480,073,276.47
  5. Step 5: Solve for x
    x = 16,480,073,276.47/147,843.36
  6. Step 6: Final answer
    x = 111,469.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.