Home / 190,843.20-286,264.80-137,966.40

Finding the Fourth Proportional to 190,843.20, 286,264.80 and 137,966.40

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Solution

The fourth proportional to 190,843.20, 286,264.80 and 137,966.40 is: 206,949.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,843.20 : 286,264.80 = 137,966.40 : x
  2. Step 2: Convert to fraction form
    190,843.20/286,264.80 = 137,966.40/x
  3. Step 3: Cross multiply
    190,843.20x = 286,264.80 × 137,966.40
  4. Step 4: Simplify right side
    190,843.20x = 39,494,923,902.72
  5. Step 5: Solve for x
    x = 39,494,923,902.72/190,843.20
  6. Step 6: Final answer
    x = 206,949.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.