Finding the Fourth Proportional to 125,803.62, 173,580.49 and 91,830.62
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Solution
The fourth proportional to 125,803.62, 173,580.49 and 91,830.62 is: 126,705.45
Step by Step Solution
- Step 1: Write the proportion equation
125,803.62 : 173,580.49 = 91,830.62 : x - Step 2: Convert to fraction form
125,803.62/173,580.49 = 91,830.62/x - Step 3: Cross multiply
125,803.62x = 173,580.49 × 91,830.62 - Step 4: Simplify right side
125,803.62x = 15,940,004,016.60 - Step 5: Solve for x
x = 15,940,004,016.60/125,803.62 - Step 6: Final answer
x = 126,705.45
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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.