Home / 140,722.20-194,195.25-76,191.12

Finding the Fourth Proportional to 140,722.20, 194,195.25 and 76,191.12

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Solution

The fourth proportional to 140,722.20, 194,195.25 and 76,191.12 is: 105,143.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,722.20 : 194,195.25 = 76,191.12 : x
  2. Step 2: Convert to fraction form
    140,722.20/194,195.25 = 76,191.12/x
  3. Step 3: Cross multiply
    140,722.20x = 194,195.25 × 76,191.12
  4. Step 4: Simplify right side
    140,722.20x = 14,795,953,596.18
  5. Step 5: Solve for x
    x = 14,795,953,596.18/140,722.20
  6. Step 6: Final answer
    x = 105,143.00

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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.