Home / 205,110.89-307,651.75-55,359.71

Finding the Fourth Proportional to 205,110.89, 307,651.75 and 55,359.71

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Solution

The fourth proportional to 205,110.89, 307,651.75 and 55,359.71 is: 83,035.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,110.89 : 307,651.75 = 55,359.71 : x
  2. Step 2: Convert to fraction form
    205,110.89/307,651.75 = 55,359.71/x
  3. Step 3: Cross multiply
    205,110.89x = 307,651.75 × 55,359.71
  4. Step 4: Simplify right side
    205,110.89x = 17,031,511,660.99
  5. Step 5: Solve for x
    x = 17,031,511,660.99/205,110.89
  6. Step 6: Final answer
    x = 83,035.63

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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.