Finding the Fourth Proportional to 129,413.08, 194,090.46 and 50,486.68
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Solution
The fourth proportional to 129,413.08, 194,090.46 and 50,486.68 is: 75,718.64
Step by Step Solution
- Step 1: Write the proportion equation
129,413.08 : 194,090.46 = 50,486.68 : x - Step 2: Convert to fraction form
129,413.08/194,090.46 = 50,486.68/x - Step 3: Cross multiply
129,413.08x = 194,090.46 × 50,486.68 - Step 4: Simplify right side
129,413.08x = 9,798,982,945.07 - Step 5: Solve for x
x = 9,798,982,945.07/129,413.08 - Step 6: Final answer
x = 75,718.64
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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.