Home / 140,626.90-194,069.64-76,964.62

Finding the Fourth Proportional to 140,626.90, 194,069.64 and 76,964.62

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Solution

The fourth proportional to 140,626.90, 194,069.64 and 76,964.62 is: 106,213.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,626.90 : 194,069.64 = 76,964.62 : x
  2. Step 2: Convert to fraction form
    140,626.90/194,069.64 = 76,964.62/x
  3. Step 3: Cross multiply
    140,626.90x = 194,069.64 × 76,964.62
  4. Step 4: Simplify right side
    140,626.90x = 14,936,496,096.14
  5. Step 5: Solve for x
    x = 14,936,496,096.14/140,626.90
  6. Step 6: Final answer
    x = 106,213.65

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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.