Home / 135,986.60-203,979.90-104,882.60

Finding the Fourth Proportional to 135,986.60, 203,979.90 and 104,882.60

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Solution

The fourth proportional to 135,986.60, 203,979.90 and 104,882.60 is: 157,323.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,986.60 : 203,979.90 = 104,882.60 : x
  2. Step 2: Convert to fraction form
    135,986.60/203,979.90 = 104,882.60/x
  3. Step 3: Cross multiply
    135,986.60x = 203,979.90 × 104,882.60
  4. Step 4: Simplify right side
    135,986.60x = 21,393,942,259.74
  5. Step 5: Solve for x
    x = 21,393,942,259.74/135,986.60
  6. Step 6: Final answer
    x = 157,323.90

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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.