Home / 190,921.20-285,798.60-148,930.80

Finding the Fourth Proportional to 190,921.20, 285,798.60 and 148,930.80

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Solution

The fourth proportional to 190,921.20, 285,798.60 and 148,930.80 is: 222,941.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,921.20 : 285,798.60 = 148,930.80 : x
  2. Step 2: Convert to fraction form
    190,921.20/285,798.60 = 148,930.80/x
  3. Step 3: Cross multiply
    190,921.20x = 285,798.60 × 148,930.80
  4. Step 4: Simplify right side
    190,921.20x = 42,564,214,136.88
  5. Step 5: Solve for x
    x = 42,564,214,136.88/190,921.20
  6. Step 6: Final answer
    x = 222,941.27

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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.