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Finding the Fourth Proportional to 159,380.46, 219,944.52 and 87,760.62

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Solution

The fourth proportional to 159,380.46, 219,944.52 and 87,760.62 is: 121,109.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,380.46 : 219,944.52 = 87,760.62 : x
  2. Step 2: Convert to fraction form
    159,380.46/219,944.52 = 87,760.62/x
  3. Step 3: Cross multiply
    159,380.46x = 219,944.52 × 87,760.62
  4. Step 4: Simplify right side
    159,380.46x = 19,302,467,440.80
  5. Step 5: Solve for x
    x = 19,302,467,440.80/159,380.46
  6. Step 6: Final answer
    x = 121,109.37

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1.5x scale

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.