Home / 138,297.60-207,508.37-67,181.22

Finding the Fourth Proportional to 138,297.60, 207,508.37 and 67,181.22

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Solution

The fourth proportional to 138,297.60, 207,508.37 and 67,181.22 is: 100,801.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,297.60 : 207,508.37 = 67,181.22 : x
  2. Step 2: Convert to fraction form
    138,297.60/207,508.37 = 67,181.22/x
  3. Step 3: Cross multiply
    138,297.60x = 207,508.37 × 67,181.22
  4. Step 4: Simplify right side
    138,297.60x = 13,940,665,120.91
  5. Step 5: Solve for x
    x = 13,940,665,120.91/138,297.60
  6. Step 6: Final answer
    x = 100,801.93

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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.