Home / 190,168.56-285,235.83-57,078.54

Finding the Fourth Proportional to 190,168.56, 285,235.83 and 57,078.54

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Solution

The fourth proportional to 190,168.56, 285,235.83 and 57,078.54 is: 85,612.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,168.56 : 285,235.83 = 57,078.54 : x
  2. Step 2: Convert to fraction form
    190,168.56/285,235.83 = 57,078.54/x
  3. Step 3: Cross multiply
    190,168.56x = 285,235.83 × 57,078.54
  4. Step 4: Simplify right side
    190,168.56x = 16,280,844,732.09
  5. Step 5: Solve for x
    x = 16,280,844,732.09/190,168.56
  6. Step 6: Final answer
    x = 85,612.70

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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.