Home / 109,857.03-164,791.97-42,389.43

Finding the Fourth Proportional to 109,857.03, 164,791.97 and 42,389.43

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Solution

The fourth proportional to 109,857.03, 164,791.97 and 42,389.43 is: 63,586.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,857.03 : 164,791.97 = 42,389.43 : x
  2. Step 2: Convert to fraction form
    109,857.03/164,791.97 = 42,389.43/x
  3. Step 3: Cross multiply
    109,857.03x = 164,791.97 × 42,389.43
  4. Step 4: Simplify right side
    109,857.03x = 6,985,437,676.88
  5. Step 5: Solve for x
    x = 6,985,437,676.88/109,857.03
  6. Step 6: Final answer
    x = 63,586.62

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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.