Home / 205,110.14-307,802.49-71,991.02

Finding the Fourth Proportional to 205,110.14, 307,802.49 and 71,991.02

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Solution

The fourth proportional to 205,110.14, 307,802.49 and 71,991.02 is: 108,034.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,110.14 : 307,802.49 = 71,991.02 : x
  2. Step 2: Convert to fraction form
    205,110.14/307,802.49 = 71,991.02/x
  3. Step 3: Cross multiply
    205,110.14x = 307,802.49 × 71,991.02
  4. Step 4: Simplify right side
    205,110.14x = 22,159,015,213.64
  5. Step 5: Solve for x
    x = 22,159,015,213.64/205,110.14
  6. Step 6: Final answer
    x = 108,034.71

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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.