Finding the Fourth Proportional to 125,930.70, 173,804.33 and 74,945.66
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Solution
The fourth proportional to 125,930.70, 173,804.33 and 74,945.66 is: 103,436.89
Step by Step Solution
- Step 1: Write the proportion equation
125,930.70 : 173,804.33 = 74,945.66 : x - Step 2: Convert to fraction form
125,930.70/173,804.33 = 74,945.66/x - Step 3: Cross multiply
125,930.70x = 173,804.33 × 74,945.66 - Step 4: Simplify right side
125,930.70x = 13,025,879,541.05 - Step 5: Solve for x
x = 13,025,879,541.05/125,930.70 - Step 6: Final answer
x = 103,436.89
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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.