Home / 140,784.54-194,234.10-80,311.56

Finding the Fourth Proportional to 140,784.54, 194,234.10 and 80,311.56

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Solution

The fourth proportional to 140,784.54, 194,234.10 and 80,311.56 is: 110,802.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,784.54 : 194,234.10 = 80,311.56 : x
  2. Step 2: Convert to fraction form
    140,784.54/194,234.10 = 80,311.56/x
  3. Step 3: Cross multiply
    140,784.54x = 194,234.10 × 80,311.56
  4. Step 4: Simplify right side
    140,784.54x = 15,599,243,576.20
  5. Step 5: Solve for x
    x = 15,599,243,576.20/140,784.54
  6. Step 6: Final answer
    x = 110,802.25

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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.