Home / 109,897.20-164,716.20-57,279.60

Finding the Fourth Proportional to 109,897.20, 164,716.20 and 57,279.60

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Solution

The fourth proportional to 109,897.20, 164,716.20 and 57,279.60 is: 85,851.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,897.20 : 164,716.20 = 57,279.60 : x
  2. Step 2: Convert to fraction form
    109,897.20/164,716.20 = 57,279.60/x
  3. Step 3: Cross multiply
    109,897.20x = 164,716.20 × 57,279.60
  4. Step 4: Simplify right side
    109,897.20x = 9,434,878,049.52
  5. Step 5: Solve for x
    x = 9,434,878,049.52/109,897.20
  6. Step 6: Final answer
    x = 85,851.85

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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.