Home / 148,786.26-205,324.38-80,802.70

Finding the Fourth Proportional to 148,786.26, 205,324.38 and 80,802.70

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Solution

The fourth proportional to 148,786.26, 205,324.38 and 80,802.70 is: 111,507.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,786.26 : 205,324.38 = 80,802.70 : x
  2. Step 2: Convert to fraction form
    148,786.26/205,324.38 = 80,802.70/x
  3. Step 3: Cross multiply
    148,786.26x = 205,324.38 × 80,802.70
  4. Step 4: Simplify right side
    148,786.26x = 16,590,764,279.83
  5. Step 5: Solve for x
    x = 16,590,764,279.83/148,786.26
  6. Step 6: Final answer
    x = 111,507.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.