Finding the Fourth Proportional to 168,198.56, 252,297.82 and 115,448.12
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Solution
The fourth proportional to 168,198.56, 252,297.82 and 115,448.12 is: 173,172.17
Step by Step Solution
- Step 1: Write the proportion equation
168,198.56 : 252,297.82 = 115,448.12 : x - Step 2: Convert to fraction form
168,198.56/252,297.82 = 115,448.12/x - Step 3: Cross multiply
168,198.56x = 252,297.82 × 115,448.12 - Step 4: Simplify right side
168,198.56x = 29,127,308,828.04 - Step 5: Solve for x
x = 29,127,308,828.04/168,198.56 - Step 6: Final answer
x = 173,172.17
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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.