Finding the Fourth Proportional to 125,378.40, 173,022.40 and 68,790.18
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Solution
The fourth proportional to 125,378.40, 173,022.40 and 68,790.18 is: 94,930.56
Step by Step Solution
- Step 1: Write the proportion equation
125,378.40 : 173,022.40 = 68,790.18 : x - Step 2: Convert to fraction form
125,378.40/173,022.40 = 68,790.18/x - Step 3: Cross multiply
125,378.40x = 173,022.40 × 68,790.18 - Step 4: Simplify right side
125,378.40x = 11,902,242,040.03 - Step 5: Solve for x
x = 11,902,242,040.03/125,378.40 - Step 6: Final answer
x = 94,930.56
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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.