Home / 190,620.19-263,087.40-105,764.59

Finding the Fourth Proportional to 190,620.19, 263,087.40 and 105,764.59

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Solution

The fourth proportional to 190,620.19, 263,087.40 and 105,764.59 is: 145,972.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,620.19 : 263,087.40 = 105,764.59 : x
  2. Step 2: Convert to fraction form
    190,620.19/263,087.40 = 105,764.59/x
  3. Step 3: Cross multiply
    190,620.19x = 263,087.40 × 105,764.59
  4. Step 4: Simplify right side
    190,620.19x = 27,825,330,995.17
  5. Step 5: Solve for x
    x = 27,825,330,995.17/190,620.19
  6. Step 6: Final answer
    x = 145,972.63

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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.