Home / 203,533.20-305,364.48-91,309.92

Finding the Fourth Proportional to 203,533.20, 305,364.48 and 91,309.92

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Solution

The fourth proportional to 203,533.20, 305,364.48 and 91,309.92 is: 136,993.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,533.20 : 305,364.48 = 91,309.92 : x
  2. Step 2: Convert to fraction form
    203,533.20/305,364.48 = 91,309.92/x
  3. Step 3: Cross multiply
    203,533.20x = 305,364.48 × 91,309.92
  4. Step 4: Simplify right side
    203,533.20x = 27,882,806,239.64
  5. Step 5: Solve for x
    x = 27,882,806,239.64/203,533.20
  6. Step 6: Final answer
    x = 136,993.90

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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.