Home / 128,778.60-193,176.57-44,546.91

Finding the Fourth Proportional to 128,778.60, 193,176.57 and 44,546.91

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Solution

The fourth proportional to 128,778.60, 193,176.57 and 44,546.91 is: 66,823.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,778.60 : 193,176.57 = 44,546.91 : x
  2. Step 2: Convert to fraction form
    128,778.60/193,176.57 = 44,546.91/x
  3. Step 3: Cross multiply
    128,778.60x = 193,176.57 × 44,546.91
  4. Step 4: Simplify right side
    128,778.60x = 8,605,419,277.90
  5. Step 5: Solve for x
    x = 8,605,419,277.90/128,778.60
  6. Step 6: Final answer
    x = 66,823.36

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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.