Home / 140,765.92-194,261.70-77,107.30

Finding the Fourth Proportional to 140,765.92, 194,261.70 and 77,107.30

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Solution

The fourth proportional to 140,765.92, 194,261.70 and 77,107.30 is: 106,410.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,765.92 : 194,261.70 = 77,107.30 : x
  2. Step 2: Convert to fraction form
    140,765.92/194,261.70 = 77,107.30/x
  3. Step 3: Cross multiply
    140,765.92x = 194,261.70 × 77,107.30
  4. Step 4: Simplify right side
    140,765.92x = 14,978,995,180.41
  5. Step 5: Solve for x
    x = 14,978,995,180.41/140,765.92
  6. Step 6: Final answer
    x = 106,410.67

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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.