Home / 140,605.20-194,035.14-76,942.98

Finding the Fourth Proportional to 140,605.20, 194,035.14 and 76,942.98

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Solution

The fourth proportional to 140,605.20, 194,035.14 and 76,942.98 is: 106,181.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,605.20 : 194,035.14 = 76,942.98 : x
  2. Step 2: Convert to fraction form
    140,605.20/194,035.14 = 76,942.98/x
  3. Step 3: Cross multiply
    140,605.20x = 194,035.14 × 76,942.98
  4. Step 4: Simplify right side
    140,605.20x = 14,929,641,896.32
  5. Step 5: Solve for x
    x = 14,929,641,896.32/140,605.20
  6. Step 6: Final answer
    x = 106,181.29

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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.