Home / 144,078.14-198,809.48-80,418.62

Finding the Fourth Proportional to 144,078.14, 198,809.48 and 80,418.62

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Solution

The fourth proportional to 144,078.14, 198,809.48 and 80,418.62 is: 110,967.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,078.14 : 198,809.48 = 80,418.62 : x
  2. Step 2: Convert to fraction form
    144,078.14/198,809.48 = 80,418.62/x
  3. Step 3: Cross multiply
    144,078.14x = 198,809.48 × 80,418.62
  4. Step 4: Simplify right side
    144,078.14x = 15,987,983,231.52
  5. Step 5: Solve for x
    x = 15,987,983,231.52/144,078.14
  6. Step 6: Final answer
    x = 110,967.45

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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.