Home / 140,736.96-194,217.30-76,206.90

Finding the Fourth Proportional to 140,736.96, 194,217.30 and 76,206.90

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Solution

The fourth proportional to 140,736.96, 194,217.30 and 76,206.90 is: 105,165.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,736.96 : 194,217.30 = 76,206.90 : x
  2. Step 2: Convert to fraction form
    140,736.96/194,217.30 = 76,206.90/x
  3. Step 3: Cross multiply
    140,736.96x = 194,217.30 × 76,206.90
  4. Step 4: Simplify right side
    140,736.96x = 14,800,698,359.37
  5. Step 5: Solve for x
    x = 14,800,698,359.37/140,736.96
  6. Step 6: Final answer
    x = 105,165.68

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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.