Home / 190,728.24-263,199.96-105,843.12

Finding the Fourth Proportional to 190,728.24, 263,199.96 and 105,843.12

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Solution

The fourth proportional to 190,728.24, 263,199.96 and 105,843.12 is: 146,060.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,728.24 : 263,199.96 = 105,843.12 : x
  2. Step 2: Convert to fraction form
    190,728.24/263,199.96 = 105,843.12/x
  3. Step 3: Cross multiply
    190,728.24x = 263,199.96 × 105,843.12
  4. Step 4: Simplify right side
    190,728.24x = 27,857,904,950.28
  5. Step 5: Solve for x
    x = 27,857,904,950.28/190,728.24
  6. Step 6: Final answer
    x = 146,060.72

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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.