Home / 190,839.40-263,358.66-105,954.28

Finding the Fourth Proportional to 190,839.40, 263,358.66 and 105,954.28

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Solution

The fourth proportional to 190,839.40, 263,358.66 and 105,954.28 is: 146,217.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,839.40 : 263,358.66 = 105,954.28 : x
  2. Step 2: Convert to fraction form
    190,839.40/263,358.66 = 105,954.28/x
  3. Step 3: Cross multiply
    190,839.40x = 263,358.66 × 105,954.28
  4. Step 4: Simplify right side
    190,839.40x = 27,903,977,202.06
  5. Step 5: Solve for x
    x = 27,903,977,202.06/190,839.40
  6. Step 6: Final answer
    x = 146,217.07

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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.