Home / 190,374.90-262,717.34-105,491.97

Finding the Fourth Proportional to 190,374.90, 262,717.34 and 105,491.97

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Solution

The fourth proportional to 190,374.90, 262,717.34 and 105,491.97 is: 145,578.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,374.90 : 262,717.34 = 105,491.97 : x
  2. Step 2: Convert to fraction form
    190,374.90/262,717.34 = 105,491.97/x
  3. Step 3: Cross multiply
    190,374.90x = 262,717.34 × 105,491.97
  4. Step 4: Simplify right side
    190,374.90x = 27,714,569,749.76
  5. Step 5: Solve for x
    x = 27,714,569,749.76/190,374.90
  6. Step 6: Final answer
    x = 145,578.91

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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.