Finding the Fourth Proportional to 125,809.62, 173,551.09 and 74,786.06
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Solution
The fourth proportional to 125,809.62, 173,551.09 and 74,786.06 is: 103,165.42
Step by Step Solution
- Step 1: Write the proportion equation
125,809.62 : 173,551.09 = 74,786.06 : x - Step 2: Convert to fraction form
125,809.62/173,551.09 = 74,786.06/x - Step 3: Cross multiply
125,809.62x = 173,551.09 × 74,786.06 - Step 4: Simplify right side
125,809.62x = 12,979,202,229.81 - Step 5: Solve for x
x = 12,979,202,229.81/125,809.62 - Step 6: Final answer
x = 103,165.42
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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.