Home / 190,179.72-262,447.99-105,296.78

Finding the Fourth Proportional to 190,179.72, 262,447.99 and 105,296.78

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Solution

The fourth proportional to 190,179.72, 262,447.99 and 105,296.78 is: 145,309.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,179.72 : 262,447.99 = 105,296.78 : x
  2. Step 2: Convert to fraction form
    190,179.72/262,447.99 = 105,296.78/x
  3. Step 3: Cross multiply
    190,179.72x = 262,447.99 × 105,296.78
  4. Step 4: Simplify right side
    190,179.72x = 27,634,928,657.35
  5. Step 5: Solve for x
    x = 27,634,928,657.35/190,179.72
  6. Step 6: Final answer
    x = 145,309.55

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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.