Home / 139,577.94-192,619.38-79,147.26

Finding the Fourth Proportional to 139,577.94, 192,619.38 and 79,147.26

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Solution

The fourth proportional to 139,577.94, 192,619.38 and 79,147.26 is: 109,224.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,577.94 : 192,619.38 = 79,147.26 : x
  2. Step 2: Convert to fraction form
    139,577.94/192,619.38 = 79,147.26/x
  3. Step 3: Cross multiply
    139,577.94x = 192,619.38 × 79,147.26
  4. Step 4: Simplify right side
    139,577.94x = 15,245,296,149.90
  5. Step 5: Solve for x
    x = 15,245,296,149.90/139,577.94
  6. Step 6: Final answer
    x = 109,224.25

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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.