Home / 109,951.20-164,900.40-31,072.80

Finding the Fourth Proportional to 109,951.20, 164,900.40 and 31,072.80

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Solution

The fourth proportional to 109,951.20, 164,900.40 and 31,072.80 is: 46,601.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,951.20 : 164,900.40 = 31,072.80 : x
  2. Step 2: Convert to fraction form
    109,951.20/164,900.40 = 31,072.80/x
  3. Step 3: Cross multiply
    109,951.20x = 164,900.40 × 31,072.80
  4. Step 4: Simplify right side
    109,951.20x = 5,123,917,149.12
  5. Step 5: Solve for x
    x = 5,123,917,149.12/109,951.20
  6. Step 6: Final answer
    x = 46,601.74

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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.