Home / 135,947.80-203,727.30-100,129.60

Finding the Fourth Proportional to 135,947.80, 203,727.30 and 100,129.60

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Solution

The fourth proportional to 135,947.80, 203,727.30 and 100,129.60 is: 150,051.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,947.80 : 203,727.30 = 100,129.60 : x
  2. Step 2: Convert to fraction form
    135,947.80/203,727.30 = 100,129.60/x
  3. Step 3: Cross multiply
    135,947.80x = 203,727.30 × 100,129.60
  4. Step 4: Simplify right side
    135,947.80x = 20,399,133,058.08
  5. Step 5: Solve for x
    x = 20,399,133,058.08/135,947.80
  6. Step 6: Final answer
    x = 150,051.22

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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.