Home / 140,657.43-194,109.09-76,993.86

Finding the Fourth Proportional to 140,657.43, 194,109.09 and 76,993.86

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Solution

The fourth proportional to 140,657.43, 194,109.09 and 76,993.86 is: 106,252.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,657.43 : 194,109.09 = 76,993.86 : x
  2. Step 2: Convert to fraction form
    140,657.43/194,109.09 = 76,993.86/x
  3. Step 3: Cross multiply
    140,657.43x = 194,109.09 × 76,993.86
  4. Step 4: Simplify right side
    140,657.43x = 14,945,208,100.19
  5. Step 5: Solve for x
    x = 14,945,208,100.19/140,657.43
  6. Step 6: Final answer
    x = 106,252.53

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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.