Home / 190,105.30-285,143.10-49,860.28

Finding the Fourth Proportional to 190,105.30, 285,143.10 and 49,860.28

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Solution

The fourth proportional to 190,105.30, 285,143.10 and 49,860.28 is: 74,786.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,105.30 : 285,143.10 = 49,860.28 : x
  2. Step 2: Convert to fraction form
    190,105.30/285,143.10 = 49,860.28/x
  3. Step 3: Cross multiply
    190,105.30x = 285,143.10 × 49,860.28
  4. Step 4: Simplify right side
    190,105.30x = 14,217,314,806.07
  5. Step 5: Solve for x
    x = 14,217,314,806.07/190,105.30
  6. Step 6: Final answer
    x = 74,786.53

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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.