Finding the Fourth Proportional to 125,665.07, 173,431.49 and 71,967.74
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Solution
The fourth proportional to 125,665.07, 173,431.49 and 71,967.74 is: 99,323.32
Step by Step Solution
- Step 1: Write the proportion equation
125,665.07 : 173,431.49 = 71,967.74 : x - Step 2: Convert to fraction form
125,665.07/173,431.49 = 71,967.74/x - Step 3: Cross multiply
125,665.07x = 173,431.49 × 71,967.74 - Step 4: Simplify right side
125,665.07x = 12,481,471,153.14 - Step 5: Solve for x
x = 12,481,471,153.14/125,665.07 - Step 6: Final answer
x = 99,323.32
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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.