Home / 140,843.28-194,357.79-77,183.76

Finding the Fourth Proportional to 140,843.28, 194,357.79 and 77,183.76

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Solution

The fourth proportional to 140,843.28, 194,357.79 and 77,183.76 is: 106,510.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,843.28 : 194,357.79 = 77,183.76 : x
  2. Step 2: Convert to fraction form
    140,843.28/194,357.79 = 77,183.76/x
  3. Step 3: Cross multiply
    140,843.28x = 194,357.79 × 77,183.76
  4. Step 4: Simplify right side
    140,843.28x = 15,001,265,017.49
  5. Step 5: Solve for x
    x = 15,001,265,017.49/140,843.28
  6. Step 6: Final answer
    x = 106,510.34

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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.