Home / 109,974.70-165,044.98-80,468.66

Finding the Fourth Proportional to 109,974.70, 165,044.98 and 80,468.66

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Solution

The fourth proportional to 109,974.70, 165,044.98 and 80,468.66 is: 120,763.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,974.70 : 165,044.98 = 80,468.66 : x
  2. Step 2: Convert to fraction form
    109,974.70/165,044.98 = 80,468.66/x
  3. Step 3: Cross multiply
    109,974.70x = 165,044.98 × 80,468.66
  4. Step 4: Simplify right side
    109,974.70x = 13,280,948,380.33
  5. Step 5: Solve for x
    x = 13,280,948,380.33/109,974.70
  6. Step 6: Final answer
    x = 120,763.67

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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.