Finding the Fourth Proportional to 129,150.17, 193,725.64 and 39,193.62
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Solution
The fourth proportional to 129,150.17, 193,725.64 and 39,193.62 is: 58,790.55
Step by Step Solution
- Step 1: Write the proportion equation
129,150.17 : 193,725.64 = 39,193.62 : x - Step 2: Convert to fraction form
129,150.17/193,725.64 = 39,193.62/x - Step 3: Cross multiply
129,150.17x = 193,725.64 × 39,193.62 - Step 4: Simplify right side
129,150.17x = 7,592,809,365.30 - Step 5: Solve for x
x = 7,592,809,365.30/129,150.17 - Step 6: Final answer
x = 58,790.55
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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.