Home / 259,859.85-389,789.75-97,784.37

Finding the Fourth Proportional to 259,859.85, 389,789.75 and 97,784.37

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Solution

The fourth proportional to 259,859.85, 389,789.75 and 97,784.37 is: 146,676.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,859.85 : 389,789.75 = 97,784.37 : x
  2. Step 2: Convert to fraction form
    259,859.85/389,789.75 = 97,784.37/x
  3. Step 3: Cross multiply
    259,859.85x = 389,789.75 × 97,784.37
  4. Step 4: Simplify right side
    259,859.85x = 38,115,344,647.29
  5. Step 5: Solve for x
    x = 38,115,344,647.29/259,859.85
  6. Step 6: Final answer
    x = 146,676.54

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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.