Finding the Fourth Proportional to 156,413.10, 215,851.18 and 84,794.26
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Solution
The fourth proportional to 156,413.10, 215,851.18 and 84,794.26 is: 117,016.68
Step by Step Solution
- Step 1: Write the proportion equation
156,413.10 : 215,851.18 = 84,794.26 : x - Step 2: Convert to fraction form
156,413.10/215,851.18 = 84,794.26/x - Step 3: Cross multiply
156,413.10x = 215,851.18 × 84,794.26 - Step 4: Simplify right side
156,413.10x = 18,302,941,078.23 - Step 5: Solve for x
x = 18,302,941,078.23/156,413.10 - Step 6: Final answer
x = 117,016.68
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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.