Finding the Fourth Proportional to 165,907.98, 248,942.07 and 81,622.44
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Solution
The fourth proportional to 165,907.98, 248,942.07 and 81,622.44 is: 122,473.07
Step by Step Solution
- Step 1: Write the proportion equation
165,907.98 : 248,942.07 = 81,622.44 : x - Step 2: Convert to fraction form
165,907.98/248,942.07 = 81,622.44/x - Step 3: Cross multiply
165,907.98x = 248,942.07 × 81,622.44 - Step 4: Simplify right side
165,907.98x = 20,319,259,172.05 - Step 5: Solve for x
x = 20,319,259,172.05/165,907.98 - Step 6: Final answer
x = 122,473.07
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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.