Home / 109,806.60-164,580.30-82,072.20

Finding the Fourth Proportional to 109,806.60, 164,580.30 and 82,072.20

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Solution

The fourth proportional to 109,806.60, 164,580.30 and 82,072.20 is: 123,011.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,806.60 : 164,580.30 = 82,072.20 : x
  2. Step 2: Convert to fraction form
    109,806.60/164,580.30 = 82,072.20/x
  3. Step 3: Cross multiply
    109,806.60x = 164,580.30 × 82,072.20
  4. Step 4: Simplify right side
    109,806.60x = 13,507,467,297.66
  5. Step 5: Solve for x
    x = 13,507,467,297.66/109,806.60
  6. Step 6: Final answer
    x = 123,011.43

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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.