Home / 140,735.96-194,215.92-76,205.90

Finding the Fourth Proportional to 140,735.96, 194,215.92 and 76,205.90

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Solution

The fourth proportional to 140,735.96, 194,215.92 and 76,205.90 is: 105,164.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,735.96 : 194,215.92 = 76,205.90 : x
  2. Step 2: Convert to fraction form
    140,735.96/194,215.92 = 76,205.90/x
  3. Step 3: Cross multiply
    140,735.96x = 194,215.92 × 76,205.90
  4. Step 4: Simplify right side
    140,735.96x = 14,800,398,977.93
  5. Step 5: Solve for x
    x = 14,800,398,977.93/140,735.96
  6. Step 6: Final answer
    x = 105,164.30

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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.