Home / 119,103.06-164,370.20-78,747.44

Finding the Fourth Proportional to 119,103.06, 164,370.20 and 78,747.44

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Solution

The fourth proportional to 119,103.06, 164,370.20 and 78,747.44 is: 108,676.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,103.06 : 164,370.20 = 78,747.44 : x
  2. Step 2: Convert to fraction form
    119,103.06/164,370.20 = 78,747.44/x
  3. Step 3: Cross multiply
    119,103.06x = 164,370.20 × 78,747.44
  4. Step 4: Simplify right side
    119,103.06x = 12,943,731,246.70
  5. Step 5: Solve for x
    x = 12,943,731,246.70/119,103.06
  6. Step 6: Final answer
    x = 108,676.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.