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Finding the Fourth Proportional to 150,661.60, 207,912.36 and 82,679.68

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Solution

The fourth proportional to 150,661.60, 207,912.36 and 82,679.68 is: 114,097.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,661.60 : 207,912.36 = 82,679.68 : x
  2. Step 2: Convert to fraction form
    150,661.60/207,912.36 = 82,679.68/x
  3. Step 3: Cross multiply
    150,661.60x = 207,912.36 × 82,679.68
  4. Step 4: Simplify right side
    150,661.60x = 17,190,127,392.84
  5. Step 5: Solve for x
    x = 17,190,127,392.84/150,661.60
  6. Step 6: Final answer
    x = 114,097.60

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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.