Home / 144,023.03-198,736.71-79,491.08

Finding the Fourth Proportional to 144,023.03, 198,736.71 and 79,491.08

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Solution

The fourth proportional to 144,023.03, 198,736.71 and 79,491.08 is: 109,689.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,023.03 : 198,736.71 = 79,491.08 : x
  2. Step 2: Convert to fraction form
    144,023.03/198,736.71 = 79,491.08/x
  3. Step 3: Cross multiply
    144,023.03x = 198,736.71 × 79,491.08
  4. Step 4: Simplify right side
    144,023.03x = 15,797,795,713.55
  5. Step 5: Solve for x
    x = 15,797,795,713.55/144,023.03
  6. Step 6: Final answer
    x = 109,689.37

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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.