Home / 137,899.35-206,662.17-71,386.18

Finding the Fourth Proportional to 137,899.35, 206,662.17 and 71,386.18

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Solution

The fourth proportional to 137,899.35, 206,662.17 and 71,386.18 is: 106,982.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,899.35 : 206,662.17 = 71,386.18 : x
  2. Step 2: Convert to fraction form
    137,899.35/206,662.17 = 71,386.18/x
  3. Step 3: Cross multiply
    137,899.35x = 206,662.17 × 71,386.18
  4. Step 4: Simplify right side
    137,899.35x = 14,752,822,350.16
  5. Step 5: Solve for x
    x = 14,752,822,350.16/137,899.35
  6. Step 6: Final answer
    x = 106,982.54

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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.