Home / 190,609.07-263,049.12-105,726.13

Finding the Fourth Proportional to 190,609.07, 263,049.12 and 105,726.13

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Solution

The fourth proportional to 190,609.07, 263,049.12 and 105,726.13 is: 145,906.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,609.07 : 263,049.12 = 105,726.13 : x
  2. Step 2: Convert to fraction form
    190,609.07/263,049.12 = 105,726.13/x
  3. Step 3: Cross multiply
    190,609.07x = 263,049.12 × 105,726.13
  4. Step 4: Simplify right side
    190,609.07x = 27,811,164,799.88
  5. Step 5: Solve for x
    x = 27,811,164,799.88/190,609.07
  6. Step 6: Final answer
    x = 145,906.83

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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.