Home / 205,098.87-307,236.21-102,205.83

Finding the Fourth Proportional to 205,098.87, 307,236.21 and 102,205.83

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Solution

The fourth proportional to 205,098.87, 307,236.21 and 102,205.83 is: 153,103.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,098.87 : 307,236.21 = 102,205.83 : x
  2. Step 2: Convert to fraction form
    205,098.87/307,236.21 = 102,205.83/x
  3. Step 3: Cross multiply
    205,098.87x = 307,236.21 × 102,205.83
  4. Step 4: Simplify right side
    205,098.87x = 31,401,331,849.10
  5. Step 5: Solve for x
    x = 31,401,331,849.10/205,098.87
  6. Step 6: Final answer
    x = 153,103.39

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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.