Home / 190,190.67-285,339.32-76,418.37

Finding the Fourth Proportional to 190,190.67, 285,339.32 and 76,418.37

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Solution

The fourth proportional to 190,190.67, 285,339.32 and 76,418.37 is: 114,648.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,190.67 : 285,339.32 = 76,418.37 : x
  2. Step 2: Convert to fraction form
    190,190.67/285,339.32 = 76,418.37/x
  3. Step 3: Cross multiply
    190,190.67x = 285,339.32 × 76,418.37
  4. Step 4: Simplify right side
    190,190.67x = 21,805,165,349.22
  5. Step 5: Solve for x
    x = 21,805,165,349.22/190,190.67
  6. Step 6: Final answer
    x = 114,648.97

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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.