Home / 190,669.09-263,119.84-105,784.33

Finding the Fourth Proportional to 190,669.09, 263,119.84 and 105,784.33

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Solution

The fourth proportional to 190,669.09, 263,119.84 and 105,784.33 is: 145,980.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,669.09 : 263,119.84 = 105,784.33 : x
  2. Step 2: Convert to fraction form
    190,669.09/263,119.84 = 105,784.33/x
  3. Step 3: Cross multiply
    190,669.09x = 263,119.84 × 105,784.33
  4. Step 4: Simplify right side
    190,669.09x = 27,833,955,984.11
  5. Step 5: Solve for x
    x = 27,833,955,984.11/190,669.09
  6. Step 6: Final answer
    x = 145,980.43

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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.