Home / 190,378.35-262,721.58-105,495.41

Finding the Fourth Proportional to 190,378.35, 262,721.58 and 105,495.41

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Solution

The fourth proportional to 190,378.35, 262,721.58 and 105,495.41 is: 145,583.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,378.35 : 262,721.58 = 105,495.41 : x
  2. Step 2: Convert to fraction form
    190,378.35/262,721.58 = 105,495.41/x
  3. Step 3: Cross multiply
    190,378.35x = 262,721.58 × 105,495.41
  4. Step 4: Simplify right side
    190,378.35x = 27,715,921,059.14
  5. Step 5: Solve for x
    x = 27,715,921,059.14/190,378.35
  6. Step 6: Final answer
    x = 145,583.37

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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.