Home / 140,830.26-194,350.24-77,171.96

Finding the Fourth Proportional to 140,830.26, 194,350.24 and 77,171.96

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Solution

The fourth proportional to 140,830.26, 194,350.24 and 77,171.96 is: 106,499.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,830.26 : 194,350.24 = 77,171.96 : x
  2. Step 2: Convert to fraction form
    140,830.26/194,350.24 = 77,171.96/x
  3. Step 3: Cross multiply
    140,830.26x = 194,350.24 × 77,171.96
  4. Step 4: Simplify right side
    140,830.26x = 14,998,388,947.27
  5. Step 5: Solve for x
    x = 14,998,388,947.27/140,830.26
  6. Step 6: Final answer
    x = 106,499.76

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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.