Home / 190,179.75-285,414.17-70,350.07

Finding the Fourth Proportional to 190,179.75, 285,414.17 and 70,350.07

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Solution

The fourth proportional to 190,179.75, 285,414.17 and 70,350.07 is: 105,578.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,179.75 : 285,414.17 = 70,350.07 : x
  2. Step 2: Convert to fraction form
    190,179.75/285,414.17 = 70,350.07/x
  3. Step 3: Cross multiply
    190,179.75x = 285,414.17 × 70,350.07
  4. Step 4: Simplify right side
    190,179.75x = 20,078,906,838.49
  5. Step 5: Solve for x
    x = 20,078,906,838.49/190,179.75
  6. Step 6: Final answer
    x = 105,578.57

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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.