Home / 139,738.98-192,843.26-76,080.27

Finding the Fourth Proportional to 139,738.98, 192,843.26 and 76,080.27

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Solution

The fourth proportional to 139,738.98, 192,843.26 and 76,080.27 is: 104,992.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,738.98 : 192,843.26 = 76,080.27 : x
  2. Step 2: Convert to fraction form
    139,738.98/192,843.26 = 76,080.27/x
  3. Step 3: Cross multiply
    139,738.98x = 192,843.26 × 76,080.27
  4. Step 4: Simplify right side
    139,738.98x = 14,671,566,908.08
  5. Step 5: Solve for x
    x = 14,671,566,908.08/139,738.98
  6. Step 6: Final answer
    x = 104,992.66

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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.