Home / 128,977.94-193,540.73-50,081.92

Finding the Fourth Proportional to 128,977.94, 193,540.73 and 50,081.92

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Solution

The fourth proportional to 128,977.94, 193,540.73 and 50,081.92 is: 75,151.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,977.94 : 193,540.73 = 50,081.92 : x
  2. Step 2: Convert to fraction form
    128,977.94/193,540.73 = 50,081.92/x
  3. Step 3: Cross multiply
    128,977.94x = 193,540.73 × 50,081.92
  4. Step 4: Simplify right side
    128,977.94x = 9,692,890,622.34
  5. Step 5: Solve for x
    x = 9,692,890,622.34/128,977.94
  6. Step 6: Final answer
    x = 75,151.54

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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.