Home / 109,665.20-164,279.10-57,104.30

Finding the Fourth Proportional to 109,665.20, 164,279.10 and 57,104.30

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Solution

The fourth proportional to 109,665.20, 164,279.10 and 57,104.30 is: 85,542.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,665.20 : 164,279.10 = 57,104.30 : x
  2. Step 2: Convert to fraction form
    109,665.20/164,279.10 = 57,104.30/x
  3. Step 3: Cross multiply
    109,665.20x = 164,279.10 × 57,104.30
  4. Step 4: Simplify right side
    109,665.20x = 9,381,043,010.13
  5. Step 5: Solve for x
    x = 9,381,043,010.13/109,665.20
  6. Step 6: Final answer
    x = 85,542.57

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1.5x scale

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.