Home / 190,664.04-263,112.66-105,780.36

Finding the Fourth Proportional to 190,664.04, 263,112.66 and 105,780.36

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Solution

The fourth proportional to 190,664.04, 263,112.66 and 105,780.36 is: 145,974.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,664.04 : 263,112.66 = 105,780.36 : x
  2. Step 2: Convert to fraction form
    190,664.04/263,112.66 = 105,780.36/x
  3. Step 3: Cross multiply
    190,664.04x = 263,112.66 × 105,780.36
  4. Step 4: Simplify right side
    190,664.04x = 27,832,151,895.36
  5. Step 5: Solve for x
    x = 27,832,151,895.36/190,664.04
  6. Step 6: Final answer
    x = 145,974.84

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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.