Home / 190,661.28-263,144.04-105,805.68

Finding the Fourth Proportional to 190,661.28, 263,144.04 and 105,805.68

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Solution

The fourth proportional to 190,661.28, 263,144.04 and 105,805.68 is: 146,029.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,661.28 : 263,144.04 = 105,805.68 : x
  2. Step 2: Convert to fraction form
    190,661.28/263,144.04 = 105,805.68/x
  3. Step 3: Cross multiply
    190,661.28x = 263,144.04 × 105,805.68
  4. Step 4: Simplify right side
    190,661.28x = 27,842,134,090.15
  5. Step 5: Solve for x
    x = 27,842,134,090.15/190,661.28
  6. Step 6: Final answer
    x = 146,029.30

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1.5x scale

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.