Finding the Fourth Proportional to 139,710.06, 192,804.84 and 79,283.25
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Solution
The fourth proportional to 139,710.06, 192,804.84 and 79,283.25 is: 109,413.70
Step by Step Solution
- Step 1: Write the proportion equation
139,710.06 : 192,804.84 = 79,283.25 : x - Step 2: Convert to fraction form
139,710.06/192,804.84 = 79,283.25/x - Step 3: Cross multiply
139,710.06x = 192,804.84 × 79,283.25 - Step 4: Simplify right side
139,710.06x = 15,286,194,330.93 - Step 5: Solve for x
x = 15,286,194,330.93/139,710.06 - Step 6: Final answer
x = 109,413.70
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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.