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Finding the Fourth Proportional to 159,110.08, 219,572.70 and 87,494.72

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Solution

The fourth proportional to 159,110.08, 219,572.70 and 87,494.72 is: 120,743.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,110.08 : 219,572.70 = 87,494.72 : x
  2. Step 2: Convert to fraction form
    159,110.08/219,572.70 = 87,494.72/x
  3. Step 3: Cross multiply
    159,110.08x = 219,572.70 × 87,494.72
  4. Step 4: Simplify right side
    159,110.08x = 19,211,451,906.14
  5. Step 5: Solve for x
    x = 19,211,451,906.14/159,110.08
  6. Step 6: Final answer
    x = 120,743.15

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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.