Finding the Fourth Proportional to 121,413.99, 167,551.38 and 67,697.79
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Solution
The fourth proportional to 121,413.99, 167,551.38 and 67,697.79 is: 93,422.99
Step by Step Solution
- Step 1: Write the proportion equation
121,413.99 : 167,551.38 = 67,697.79 : x - Step 2: Convert to fraction form
121,413.99/167,551.38 = 67,697.79/x - Step 3: Cross multiply
121,413.99x = 167,551.38 × 67,697.79 - Step 4: Simplify right side
121,413.99x = 11,342,858,137.45 - Step 5: Solve for x
x = 11,342,858,137.45/121,413.99 - Step 6: Final answer
x = 93,422.99
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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.