Home / 190,190.50-285,179.11-130,286.70

Finding the Fourth Proportional to 190,190.50, 285,179.11 and 130,286.70

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Solution

The fourth proportional to 190,190.50, 285,179.11 and 130,286.70 is: 195,357.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,190.50 : 285,179.11 = 130,286.70 : x
  2. Step 2: Convert to fraction form
    190,190.50/285,179.11 = 130,286.70/x
  3. Step 3: Cross multiply
    190,190.50x = 285,179.11 × 130,286.70
  4. Step 4: Simplify right side
    190,190.50x = 37,155,044,825.12
  5. Step 5: Solve for x
    x = 37,155,044,825.12/190,190.50
  6. Step 6: Final answer
    x = 195,357.00

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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.