Home / 140,647.41-194,093.64-76,989.24

Finding the Fourth Proportional to 140,647.41, 194,093.64 and 76,989.24

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Solution

The fourth proportional to 140,647.41, 194,093.64 and 76,989.24 is: 106,245.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,647.41 : 194,093.64 = 76,989.24 : x
  2. Step 2: Convert to fraction form
    140,647.41/194,093.64 = 76,989.24/x
  3. Step 3: Cross multiply
    140,647.41x = 194,093.64 × 76,989.24
  4. Step 4: Simplify right side
    140,647.41x = 14,943,121,832.43
  5. Step 5: Solve for x
    x = 14,943,121,832.43/140,647.41
  6. Step 6: Final answer
    x = 106,245.27

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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.