Home / 190,911.20-285,783.60-148,920.80

Finding the Fourth Proportional to 190,911.20, 285,783.60 and 148,920.80

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Solution

The fourth proportional to 190,911.20, 285,783.60 and 148,920.80 is: 222,926.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,911.20 : 285,783.60 = 148,920.80 : x
  2. Step 2: Convert to fraction form
    190,911.20/285,783.60 = 148,920.80/x
  3. Step 3: Cross multiply
    190,911.20x = 285,783.60 × 148,920.80
  4. Step 4: Simplify right side
    190,911.20x = 42,559,122,338.88
  5. Step 5: Solve for x
    x = 42,559,122,338.88/190,911.20
  6. Step 6: Final answer
    x = 222,926.27

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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.