Home / 101,942.94-140,676.38-56,623.80

Finding the Fourth Proportional to 101,942.94, 140,676.38 and 56,623.80

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Solution

The fourth proportional to 101,942.94, 140,676.38 and 56,623.80 is: 78,138.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,942.94 : 140,676.38 = 56,623.80 : x
  2. Step 2: Convert to fraction form
    101,942.94/140,676.38 = 56,623.80/x
  3. Step 3: Cross multiply
    101,942.94x = 140,676.38 × 56,623.80
  4. Step 4: Simplify right side
    101,942.94x = 7,965,631,205.84
  5. Step 5: Solve for x
    x = 7,965,631,205.84/101,942.94
  6. Step 6: Final answer
    x = 78,138.13

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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.