Home / 140,972.54-194,544.60-77,309.78

Finding the Fourth Proportional to 140,972.54, 194,544.60 and 77,309.78

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Solution

The fourth proportional to 140,972.54, 194,544.60 and 77,309.78 is: 106,688.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,972.54 : 194,544.60 = 77,309.78 : x
  2. Step 2: Convert to fraction form
    140,972.54/194,544.60 = 77,309.78/x
  3. Step 3: Cross multiply
    140,972.54x = 194,544.60 × 77,309.78
  4. Step 4: Simplify right side
    140,972.54x = 15,040,200,226.19
  5. Step 5: Solve for x
    x = 15,040,200,226.19/140,972.54
  6. Step 6: Final answer
    x = 106,688.86

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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.