Home / 190,438.20-285,657.30-127,452.60

Finding the Fourth Proportional to 190,438.20, 285,657.30 and 127,452.60

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Solution

The fourth proportional to 190,438.20, 285,657.30 and 127,452.60 is: 191,178.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,438.20 : 285,657.30 = 127,452.60 : x
  2. Step 2: Convert to fraction form
    190,438.20/285,657.30 = 127,452.60/x
  3. Step 3: Cross multiply
    190,438.20x = 285,657.30 × 127,452.60
  4. Step 4: Simplify right side
    190,438.20x = 36,407,765,593.98
  5. Step 5: Solve for x
    x = 36,407,765,593.98/190,438.20
  6. Step 6: Final answer
    x = 191,178.90

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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.