Home / 203,769.06-305,584.38-70,618.20

Finding the Fourth Proportional to 203,769.06, 305,584.38 and 70,618.20

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Solution

The fourth proportional to 203,769.06, 305,584.38 and 70,618.20 is: 105,903.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,769.06 : 305,584.38 = 70,618.20 : x
  2. Step 2: Convert to fraction form
    203,769.06/305,584.38 = 70,618.20/x
  3. Step 3: Cross multiply
    203,769.06x = 305,584.38 × 70,618.20
  4. Step 4: Simplify right side
    203,769.06x = 21,579,818,863.72
  5. Step 5: Solve for x
    x = 21,579,818,863.72/203,769.06
  6. Step 6: Final answer
    x = 105,903.31

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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.