Finding the Fourth Proportional to 138,413.24, 207,546.04 and 71,687.88
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Solution
The fourth proportional to 138,413.24, 207,546.04 and 71,687.88 is: 107,493.59
Step by Step Solution
- Step 1: Write the proportion equation
138,413.24 : 207,546.04 = 71,687.88 : x - Step 2: Convert to fraction form
138,413.24/207,546.04 = 71,687.88/x - Step 3: Cross multiply
138,413.24x = 207,546.04 × 71,687.88 - Step 4: Simplify right side
138,413.24x = 14,878,535,610.00 - Step 5: Solve for x
x = 14,878,535,610.00/138,413.24 - Step 6: Final answer
x = 107,493.59
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.