Home / 190,900.20-285,767.10-148,909.80

Finding the Fourth Proportional to 190,900.20, 285,767.10 and 148,909.80

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Solution

The fourth proportional to 190,900.20, 285,767.10 and 148,909.80 is: 222,909.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,900.20 : 285,767.10 = 148,909.80 : x
  2. Step 2: Convert to fraction form
    190,900.20/285,767.10 = 148,909.80/x
  3. Step 3: Cross multiply
    190,900.20x = 285,767.10 × 148,909.80
  4. Step 4: Simplify right side
    190,900.20x = 42,553,521,707.58
  5. Step 5: Solve for x
    x = 42,553,521,707.58/190,900.20
  6. Step 6: Final answer
    x = 222,909.78

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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.