Home / 150,546.89-207,739.73-86,905.19

Finding the Fourth Proportional to 150,546.89, 207,739.73 and 86,905.19

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Solution

The fourth proportional to 150,546.89, 207,739.73 and 86,905.19 is: 119,920.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,546.89 : 207,739.73 = 86,905.19 : x
  2. Step 2: Convert to fraction form
    150,546.89/207,739.73 = 86,905.19/x
  3. Step 3: Cross multiply
    150,546.89x = 207,739.73 × 86,905.19
  4. Step 4: Simplify right side
    150,546.89x = 18,053,659,232.97
  5. Step 5: Solve for x
    x = 18,053,659,232.97/150,546.89
  6. Step 6: Final answer
    x = 119,920.51

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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.