Home / 131,793.67-181,828.17-80,787.97

Finding the Fourth Proportional to 131,793.67, 181,828.17 and 80,787.97

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Solution

The fourth proportional to 131,793.67, 181,828.17 and 80,787.97 is: 111,458.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,793.67 : 181,828.17 = 80,787.97 : x
  2. Step 2: Convert to fraction form
    131,793.67/181,828.17 = 80,787.97/x
  3. Step 3: Cross multiply
    131,793.67x = 181,828.17 × 80,787.97
  4. Step 4: Simplify right side
    131,793.67x = 14,689,528,743.11
  5. Step 5: Solve for x
    x = 14,689,528,743.11/131,793.67
  6. Step 6: Final answer
    x = 111,458.53

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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.