Home / 140,709.57-194,179.53-76,179.49

Finding the Fourth Proportional to 140,709.57, 194,179.53 and 76,179.49

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Solution

The fourth proportional to 140,709.57, 194,179.53 and 76,179.49 is: 105,127.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,709.57 : 194,179.53 = 76,179.49 : x
  2. Step 2: Convert to fraction form
    140,709.57/194,179.53 = 76,179.49/x
  3. Step 3: Cross multiply
    140,709.57x = 194,179.53 × 76,179.49
  4. Step 4: Simplify right side
    140,709.57x = 14,792,497,563.84
  5. Step 5: Solve for x
    x = 14,792,497,563.84/140,709.57
  6. Step 6: Final answer
    x = 105,127.87

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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.