Home / 190,564.22-285,786.36-68,969.06

Finding the Fourth Proportional to 190,564.22, 285,786.36 and 68,969.06

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Solution

The fourth proportional to 190,564.22, 285,786.36 and 68,969.06 is: 103,431.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,564.22 : 285,786.36 = 68,969.06 : x
  2. Step 2: Convert to fraction form
    190,564.22/285,786.36 = 68,969.06/x
  3. Step 3: Cross multiply
    190,564.22x = 285,786.36 × 68,969.06
  4. Step 4: Simplify right side
    190,564.22x = 19,710,416,610.02
  5. Step 5: Solve for x
    x = 19,710,416,610.02/190,564.22
  6. Step 6: Final answer
    x = 103,431.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.