Finding the Fourth Proportional to 163,448.18, 225,619.68 and 122,729.94
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Solution
The fourth proportional to 163,448.18, 225,619.68 and 122,729.94 is: 169,413.25
Step by Step Solution
- Step 1: Write the proportion equation
163,448.18 : 225,619.68 = 122,729.94 : x - Step 2: Convert to fraction form
163,448.18/225,619.68 = 122,729.94/x - Step 3: Cross multiply
163,448.18x = 225,619.68 × 122,729.94 - Step 4: Simplify right side
163,448.18x = 27,690,288,431.00 - Step 5: Solve for x
x = 27,690,288,431.00/163,448.18 - Step 6: Final answer
x = 169,413.25
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.