Home / 140,641.90-194,086.05-76,983.73

Finding the Fourth Proportional to 140,641.90, 194,086.05 and 76,983.73

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Solution

The fourth proportional to 140,641.90, 194,086.05 and 76,983.73 is: 106,237.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,641.90 : 194,086.05 = 76,983.73 : x
  2. Step 2: Convert to fraction form
    140,641.90/194,086.05 = 76,983.73/x
  3. Step 3: Cross multiply
    140,641.90x = 194,086.05 × 76,983.73
  4. Step 4: Simplify right side
    140,641.90x = 14,941,467,099.54
  5. Step 5: Solve for x
    x = 14,941,467,099.54/140,641.90
  6. Step 6: Final answer
    x = 106,237.67

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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.