Home / 143,883.89-198,470.07-92,876.97

Finding the Fourth Proportional to 143,883.89, 198,470.07 and 92,876.97

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Solution

The fourth proportional to 143,883.89, 198,470.07 and 92,876.97 is: 128,112.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,883.89 : 198,470.07 = 92,876.97 : x
  2. Step 2: Convert to fraction form
    143,883.89/198,470.07 = 92,876.97/x
  3. Step 3: Cross multiply
    143,883.89x = 198,470.07 × 92,876.97
  4. Step 4: Simplify right side
    143,883.89x = 18,433,298,737.29
  5. Step 5: Solve for x
    x = 18,433,298,737.29/143,883.89
  6. Step 6: Final answer
    x = 128,112.32

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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.