Finding the Fourth Proportional to 125,119.14, 172,678.40 and 71,413.26
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Solution
The fourth proportional to 125,119.14, 172,678.40 and 71,413.26 is: 98,558.28
Step by Step Solution
- Step 1: Write the proportion equation
125,119.14 : 172,678.40 = 71,413.26 : x - Step 2: Convert to fraction form
125,119.14/172,678.40 = 71,413.26/x - Step 3: Cross multiply
125,119.14x = 172,678.40 × 71,413.26 - Step 4: Simplify right side
125,119.14x = 12,331,527,132.24 - Step 5: Solve for x
x = 12,331,527,132.24/125,119.14 - Step 6: Final answer
x = 98,558.28
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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.