Home / 159,234.44-219,748.82-87,619.72

Finding the Fourth Proportional to 159,234.44, 219,748.82 and 87,619.72

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Solution

The fourth proportional to 159,234.44, 219,748.82 and 87,619.72 is: 120,918.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,234.44 : 219,748.82 = 87,619.72 : x
  2. Step 2: Convert to fraction form
    159,234.44/219,748.82 = 87,619.72/x
  3. Step 3: Cross multiply
    159,234.44x = 219,748.82 × 87,619.72
  4. Step 4: Simplify right side
    159,234.44x = 19,254,330,078.73
  5. Step 5: Solve for x
    x = 19,254,330,078.73/159,234.44
  6. Step 6: Final answer
    x = 120,918.13

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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.