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Finding the Fourth Proportional to 80,110.20, 119,906.10 and 73,889.40

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Solution

The fourth proportional to 80,110.20, 119,906.10 and 73,889.40 is: 110,595.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,110.20 : 119,906.10 = 73,889.40 : x
  2. Step 2: Convert to fraction form
    80,110.20/119,906.10 = 73,889.40/x
  3. Step 3: Cross multiply
    80,110.20x = 119,906.10 × 73,889.40
  4. Step 4: Simplify right side
    80,110.20x = 8,859,789,785.34
  5. Step 5: Solve for x
    x = 8,859,789,785.34/80,110.20
  6. Step 6: Final answer
    x = 110,595.03

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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.