Home / 137,729.75-206,705.34-71,189.37

Finding the Fourth Proportional to 137,729.75, 206,705.34 and 71,189.37

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Solution

The fourth proportional to 137,729.75, 206,705.34 and 71,189.37 is: 106,841.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,729.75 : 206,705.34 = 71,189.37 : x
  2. Step 2: Convert to fraction form
    137,729.75/206,705.34 = 71,189.37/x
  3. Step 3: Cross multiply
    137,729.75x = 206,705.34 × 71,189.37
  4. Step 4: Simplify right side
    137,729.75x = 14,715,222,930.24
  5. Step 5: Solve for x
    x = 14,715,222,930.24/137,729.75
  6. Step 6: Final answer
    x = 106,841.28

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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.