Home / 190,905.20-285,774.60-148,914.80

Finding the Fourth Proportional to 190,905.20, 285,774.60 and 148,914.80

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Solution

The fourth proportional to 190,905.20, 285,774.60 and 148,914.80 is: 222,917.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,905.20 : 285,774.60 = 148,914.80 : x
  2. Step 2: Convert to fraction form
    190,905.20/285,774.60 = 148,914.80/x
  3. Step 3: Cross multiply
    190,905.20x = 285,774.60 × 148,914.80
  4. Step 4: Simplify right side
    190,905.20x = 42,556,067,404.08
  5. Step 5: Solve for x
    x = 42,556,067,404.08/190,905.20
  6. Step 6: Final answer
    x = 222,917.28

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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.