Home / 140,723.20-194,196.63-76,192.12

Finding the Fourth Proportional to 140,723.20, 194,196.63 and 76,192.12

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Solution

The fourth proportional to 140,723.20, 194,196.63 and 76,192.12 is: 105,144.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,723.20 : 194,196.63 = 76,192.12 : x
  2. Step 2: Convert to fraction form
    140,723.20/194,196.63 = 76,192.12/x
  3. Step 3: Cross multiply
    140,723.20x = 194,196.63 × 76,192.12
  4. Step 4: Simplify right side
    140,723.20x = 14,796,252,936.56
  5. Step 5: Solve for x
    x = 14,796,252,936.56/140,723.20
  6. Step 6: Final answer
    x = 105,144.38

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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.