Finding the Fourth Proportional to 103,239.48, 154,858.84 and 68,170.80
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Solution
The fourth proportional to 103,239.48, 154,858.84 and 68,170.80 is: 102,255.95
Step by Step Solution
- Step 1: Write the proportion equation
103,239.48 : 154,858.84 = 68,170.80 : x - Step 2: Convert to fraction form
103,239.48/154,858.84 = 68,170.80/x - Step 3: Cross multiply
103,239.48x = 154,858.84 × 68,170.80 - Step 4: Simplify right side
103,239.48x = 10,556,851,009.87 - Step 5: Solve for x
x = 10,556,851,009.87/103,239.48 - Step 6: Final answer
x = 102,255.95
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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.