Finding the Fourth Proportional to 125,471.15, 173,144.26 and 68,109.18
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Solution
The fourth proportional to 125,471.15, 173,144.26 and 68,109.18 is: 93,987.45
Step by Step Solution
- Step 1: Write the proportion equation
125,471.15 : 173,144.26 = 68,109.18 : x - Step 2: Convert to fraction form
125,471.15/173,144.26 = 68,109.18/x - Step 3: Cross multiply
125,471.15x = 173,144.26 × 68,109.18 - Step 4: Simplify right side
125,471.15x = 11,792,713,570.31 - Step 5: Solve for x
x = 11,792,713,570.31/125,471.15 - Step 6: Final answer
x = 93,987.45
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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.