Home / 140,634.12-194,074.38-76,103.31

Finding the Fourth Proportional to 140,634.12, 194,074.38 and 76,103.31

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Solution

The fourth proportional to 140,634.12, 194,074.38 and 76,103.31 is: 105,022.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,634.12 : 194,074.38 = 76,103.31 : x
  2. Step 2: Convert to fraction form
    140,634.12/194,074.38 = 76,103.31/x
  3. Step 3: Cross multiply
    140,634.12x = 194,074.38 × 76,103.31
  4. Step 4: Simplify right side
    140,634.12x = 14,769,702,704.20
  5. Step 5: Solve for x
    x = 14,769,702,704.20/140,634.12
  6. Step 6: Final answer
    x = 105,022.19

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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.