Home / 137,731.25-206,707.59-71,190.87

Finding the Fourth Proportional to 137,731.25, 206,707.59 and 71,190.87

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Solution

The fourth proportional to 137,731.25, 206,707.59 and 71,190.87 is: 106,843.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,731.25 : 206,707.59 = 71,190.87 : x
  2. Step 2: Convert to fraction form
    137,731.25/206,707.59 = 71,190.87/x
  3. Step 3: Cross multiply
    137,731.25x = 206,707.59 × 71,190.87
  4. Step 4: Simplify right side
    137,731.25x = 14,715,693,167.70
  5. Step 5: Solve for x
    x = 14,715,693,167.70/137,731.25
  6. Step 6: Final answer
    x = 106,843.54

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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.