Finding the Fourth Proportional to 129,149.74, 193,735.77 and 35,655.49
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Solution
The fourth proportional to 129,149.74, 193,735.77 and 35,655.49 is: 53,486.32
Step by Step Solution
- Step 1: Write the proportion equation
129,149.74 : 193,735.77 = 35,655.49 : x - Step 2: Convert to fraction form
129,149.74/193,735.77 = 35,655.49/x - Step 3: Cross multiply
129,149.74x = 193,735.77 × 35,655.49 - Step 4: Simplify right side
129,149.74x = 6,907,743,809.88 - Step 5: Solve for x
x = 6,907,743,809.88/129,149.74 - Step 6: Final answer
x = 53,486.32
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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.