Home / 140,579.70-194,001.39-76,920.18

Finding the Fourth Proportional to 140,579.70, 194,001.39 and 76,920.18

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Solution

The fourth proportional to 140,579.70, 194,001.39 and 76,920.18 is: 106,150.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,579.70 : 194,001.39 = 76,920.18 : x
  2. Step 2: Convert to fraction form
    140,579.70/194,001.39 = 76,920.18/x
  3. Step 3: Cross multiply
    140,579.70x = 194,001.39 × 76,920.18
  4. Step 4: Simplify right side
    140,579.70x = 14,922,621,839.05
  5. Step 5: Solve for x
    x = 14,922,621,839.05/140,579.70
  6. Step 6: Final answer
    x = 106,150.62

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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.