Home / 128,650.20-193,003.66-43,258.14

Finding the Fourth Proportional to 128,650.20, 193,003.66 and 43,258.14

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Solution

The fourth proportional to 128,650.20, 193,003.66 and 43,258.14 is: 64,896.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,650.20 : 193,003.66 = 43,258.14 : x
  2. Step 2: Convert to fraction form
    128,650.20/193,003.66 = 43,258.14/x
  3. Step 3: Cross multiply
    128,650.20x = 193,003.66 × 43,258.14
  4. Step 4: Simplify right side
    128,650.20x = 8,348,979,344.79
  5. Step 5: Solve for x
    x = 8,348,979,344.79/128,650.20
  6. Step 6: Final answer
    x = 64,896.75

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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.