Home / 140,551.78-193,971.98-80,123.86

Finding the Fourth Proportional to 140,551.78, 193,971.98 and 80,123.86

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Solution

The fourth proportional to 140,551.78, 193,971.98 and 80,123.86 is: 110,576.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,551.78 : 193,971.98 = 80,123.86 : x
  2. Step 2: Convert to fraction form
    140,551.78/193,971.98 = 80,123.86/x
  3. Step 3: Cross multiply
    140,551.78x = 193,971.98 × 80,123.86
  4. Step 4: Simplify right side
    140,551.78x = 15,541,783,769.44
  5. Step 5: Solve for x
    x = 15,541,783,769.44/140,551.78
  6. Step 6: Final answer
    x = 110,576.93

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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.