Home / 190,783.78-263,268.43-105,894.16

Finding the Fourth Proportional to 190,783.78, 263,268.43 and 105,894.16

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Solution

The fourth proportional to 190,783.78, 263,268.43 and 105,894.16 is: 146,126.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,783.78 : 263,268.43 = 105,894.16 : x
  2. Step 2: Convert to fraction form
    190,783.78/263,268.43 = 105,894.16/x
  3. Step 3: Cross multiply
    190,783.78x = 263,268.43 × 105,894.16
  4. Step 4: Simplify right side
    190,783.78x = 27,878,589,249.37
  5. Step 5: Solve for x
    x = 27,878,589,249.37/190,783.78
  6. Step 6: Final answer
    x = 146,126.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.