Home / 190,809.13-263,303.41-105,919.49

Finding the Fourth Proportional to 190,809.13, 263,303.41 and 105,919.49

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Solution

The fourth proportional to 190,809.13, 263,303.41 and 105,919.49 is: 146,161.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,809.13 : 263,303.41 = 105,919.49 : x
  2. Step 2: Convert to fraction form
    190,809.13/263,303.41 = 105,919.49/x
  3. Step 3: Cross multiply
    190,809.13x = 263,303.41 × 105,919.49
  4. Step 4: Simplify right side
    190,809.13x = 27,888,962,372.86
  5. Step 5: Solve for x
    x = 27,888,962,372.86/190,809.13
  6. Step 6: Final answer
    x = 146,161.57

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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.