Finding the Fourth Proportional to 125,413.76, 173,070.98 and 68,825.12
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Solution
The fourth proportional to 125,413.76, 173,070.98 and 68,825.12 is: 94,978.66
Step by Step Solution
- Step 1: Write the proportion equation
125,413.76 : 173,070.98 = 68,825.12 : x - Step 2: Convert to fraction form
125,413.76/173,070.98 = 68,825.12/x - Step 3: Cross multiply
125,413.76x = 173,070.98 × 68,825.12 - Step 4: Simplify right side
125,413.76x = 11,911,630,967.02 - Step 5: Solve for x
x = 11,911,630,967.02/125,413.76 - Step 6: Final answer
x = 94,978.66
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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.