Home / 259,373.35-389,027.22-81,898.30

Finding the Fourth Proportional to 259,373.35, 389,027.22 and 81,898.30

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Solution

The fourth proportional to 259,373.35, 389,027.22 and 81,898.30 is: 122,837.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,373.35 : 389,027.22 = 81,898.30 : x
  2. Step 2: Convert to fraction form
    259,373.35/389,027.22 = 81,898.30/x
  3. Step 3: Cross multiply
    259,373.35x = 389,027.22 × 81,898.30
  4. Step 4: Simplify right side
    259,373.35x = 31,860,667,971.73
  5. Step 5: Solve for x
    x = 31,860,667,971.73/259,373.35
  6. Step 6: Final answer
    x = 122,837.09

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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.