Home / 140,769.20-194,261.58-77,107.25

Finding the Fourth Proportional to 140,769.20, 194,261.58 and 77,107.25

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Solution

The fourth proportional to 140,769.20, 194,261.58 and 77,107.25 is: 106,408.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,769.20 : 194,261.58 = 77,107.25 : x
  2. Step 2: Convert to fraction form
    140,769.20/194,261.58 = 77,107.25/x
  3. Step 3: Cross multiply
    140,769.20x = 194,261.58 × 77,107.25
  4. Step 4: Simplify right side
    140,769.20x = 14,978,975,243.15
  5. Step 5: Solve for x
    x = 14,978,975,243.15/140,769.20
  6. Step 6: Final answer
    x = 106,408.05

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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.