Finding the Fourth Proportional to 145,951.95, 201,413.59 and 78,883.95
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Solution
The fourth proportional to 145,951.95, 201,413.59 and 78,883.95 is: 108,859.80
Step by Step Solution
- Step 1: Write the proportion equation
145,951.95 : 201,413.59 = 78,883.95 : x - Step 2: Convert to fraction form
145,951.95/201,413.59 = 78,883.95/x - Step 3: Cross multiply
145,951.95x = 201,413.59 × 78,883.95 - Step 4: Simplify right side
145,951.95x = 15,888,299,562.88 - Step 5: Solve for x
x = 15,888,299,562.88/145,951.95 - Step 6: Final answer
x = 108,859.80
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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.