Home / 139,739.98-192,844.64-76,081.27

Finding the Fourth Proportional to 139,739.98, 192,844.64 and 76,081.27

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Solution

The fourth proportional to 139,739.98, 192,844.64 and 76,081.27 is: 104,994.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,739.98 : 192,844.64 = 76,081.27 : x
  2. Step 2: Convert to fraction form
    139,739.98/192,844.64 = 76,081.27/x
  3. Step 3: Cross multiply
    139,739.98x = 192,844.64 × 76,081.27
  4. Step 4: Simplify right side
    139,739.98x = 14,671,864,261.37
  5. Step 5: Solve for x
    x = 14,671,864,261.37/139,739.98
  6. Step 6: Final answer
    x = 104,994.04

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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.