Home / 203,389.06-304,969.22-83,412.96

Finding the Fourth Proportional to 203,389.06, 304,969.22 and 83,412.96

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Solution

The fourth proportional to 203,389.06, 304,969.22 and 83,412.96 is: 125,072.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,389.06 : 304,969.22 = 83,412.96 : x
  2. Step 2: Convert to fraction form
    203,389.06/304,969.22 = 83,412.96/x
  3. Step 3: Cross multiply
    203,389.06x = 304,969.22 × 83,412.96
  4. Step 4: Simplify right side
    203,389.06x = 25,438,385,349.09
  5. Step 5: Solve for x
    x = 25,438,385,349.09/203,389.06
  6. Step 6: Final answer
    x = 125,072.54

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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.