Finding the Fourth Proportional to 103,239.52, 154,858.80 and 68,170.80
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Solution
The fourth proportional to 103,239.52, 154,858.80 and 68,170.80 is: 102,255.88
Step by Step Solution
- Step 1: Write the proportion equation
103,239.52 : 154,858.80 = 68,170.80 : x - Step 2: Convert to fraction form
103,239.52/154,858.80 = 68,170.80/x - Step 3: Cross multiply
103,239.52x = 154,858.80 × 68,170.80 - Step 4: Simplify right side
103,239.52x = 10,556,848,283.04 - Step 5: Solve for x
x = 10,556,848,283.04/103,239.52 - Step 6: Final answer
x = 102,255.88
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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.