Home / 140,880.14-194,419.41-77,217.92

Finding the Fourth Proportional to 140,880.14, 194,419.41 and 77,217.92

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Solution

The fourth proportional to 140,880.14, 194,419.41 and 77,217.92 is: 106,563.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,880.14 : 194,419.41 = 77,217.92 : x
  2. Step 2: Convert to fraction form
    140,880.14/194,419.41 = 77,217.92/x
  3. Step 3: Cross multiply
    140,880.14x = 194,419.41 × 77,217.92
  4. Step 4: Simplify right side
    140,880.14x = 15,012,662,447.83
  5. Step 5: Solve for x
    x = 15,012,662,447.83/140,880.14
  6. Step 6: Final answer
    x = 106,563.37

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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.