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Finding the Fourth Proportional to 139,751.37, 192,847.14 and 79,323.26

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Solution

The fourth proportional to 139,751.37, 192,847.14 and 79,323.26 is: 109,460.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,751.37 : 192,847.14 = 79,323.26 : x
  2. Step 2: Convert to fraction form
    139,751.37/192,847.14 = 79,323.26/x
  3. Step 3: Cross multiply
    139,751.37x = 192,847.14 × 79,323.26
  4. Step 4: Simplify right side
    139,751.37x = 15,297,262,862.24
  5. Step 5: Solve for x
    x = 15,297,262,862.24/139,751.37
  6. Step 6: Final answer
    x = 109,460.56

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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.