Finding the Fourth Proportional to 125,119.99, 172,677.99 and 71,413.12
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Solution
The fourth proportional to 125,119.99, 172,677.99 and 71,413.12 is: 98,557.19
Step by Step Solution
- Step 1: Write the proportion equation
125,119.99 : 172,677.99 = 71,413.12 : x - Step 2: Convert to fraction form
125,119.99/172,677.99 = 71,413.12/x - Step 3: Cross multiply
125,119.99x = 172,677.99 × 71,413.12 - Step 4: Simplify right side
125,119.99x = 12,331,474,021.23 - Step 5: Solve for x
x = 12,331,474,021.23/125,119.99 - Step 6: Final answer
x = 98,557.19
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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.