Home / 259,849.20-389,773.80-102,025.20

Finding the Fourth Proportional to 259,849.20, 389,773.80 and 102,025.20

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Solution

The fourth proportional to 259,849.20, 389,773.80 and 102,025.20 is: 153,037.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,849.20 : 389,773.80 = 102,025.20 : x
  2. Step 2: Convert to fraction form
    259,849.20/389,773.80 = 102,025.20/x
  3. Step 3: Cross multiply
    259,849.20x = 389,773.80 × 102,025.20
  4. Step 4: Simplify right side
    259,849.20x = 39,766,749,899.76
  5. Step 5: Solve for x
    x = 39,766,749,899.76/259,849.20
  6. Step 6: Final answer
    x = 153,037.80

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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.