Home / 190,086.80-285,130.20-188,774.60

Finding the Fourth Proportional to 190,086.80, 285,130.20 and 188,774.60

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Solution

The fourth proportional to 190,086.80, 285,130.20 and 188,774.60 is: 283,161.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,086.80 : 285,130.20 = 188,774.60 : x
  2. Step 2: Convert to fraction form
    190,086.80/285,130.20 = 188,774.60/x
  3. Step 3: Cross multiply
    190,086.80x = 285,130.20 × 188,774.60
  4. Step 4: Simplify right side
    190,086.80x = 53,825,339,452.92
  5. Step 5: Solve for x
    x = 53,825,339,452.92/190,086.80
  6. Step 6: Final answer
    x = 283,161.90

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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.