Home / 107,933.40-161,900.10-68,664.60

Finding the Fourth Proportional to 107,933.40, 161,900.10 and 68,664.60

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Solution

The fourth proportional to 107,933.40, 161,900.10 and 68,664.60 is: 102,996.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,933.40 : 161,900.10 = 68,664.60 : x
  2. Step 2: Convert to fraction form
    107,933.40/161,900.10 = 68,664.60/x
  3. Step 3: Cross multiply
    107,933.40x = 161,900.10 × 68,664.60
  4. Step 4: Simplify right side
    107,933.40x = 11,116,805,606.46
  5. Step 5: Solve for x
    x = 11,116,805,606.46/107,933.40
  6. Step 6: Final answer
    x = 102,996.90

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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.