Finding the Fourth Proportional to 129,714.36, 194,577.42 and 39,750.60
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Solution
The fourth proportional to 129,714.36, 194,577.42 and 39,750.60 is: 59,627.70
Step by Step Solution
- Step 1: Write the proportion equation
129,714.36 : 194,577.42 = 39,750.60 : x - Step 2: Convert to fraction form
129,714.36/194,577.42 = 39,750.60/x - Step 3: Cross multiply
129,714.36x = 194,577.42 × 39,750.60 - Step 4: Simplify right side
129,714.36x = 7,734,569,191.45 - Step 5: Solve for x
x = 7,734,569,191.45/129,714.36 - Step 6: Final answer
x = 59,627.70
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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.