Home / 140,717.24-194,190.09-76,187.15

Finding the Fourth Proportional to 140,717.24, 194,190.09 and 76,187.15

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Solution

The fourth proportional to 140,717.24, 194,190.09 and 76,187.15 is: 105,138.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,717.24 : 194,190.09 = 76,187.15 : x
  2. Step 2: Convert to fraction form
    140,717.24/194,190.09 = 76,187.15/x
  3. Step 3: Cross multiply
    140,717.24x = 194,190.09 × 76,187.15
  4. Step 4: Simplify right side
    140,717.24x = 14,794,789,515.34
  5. Step 5: Solve for x
    x = 14,794,789,515.34/140,717.24
  6. Step 6: Final answer
    x = 105,138.43

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1.5x scale

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.