Finding the Fourth Proportional to 125,927.26, 188,890.68 and 86,364.43
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Solution
The fourth proportional to 125,927.26, 188,890.68 and 86,364.43 is: 129,546.50
Step by Step Solution
- Step 1: Write the proportion equation
125,927.26 : 188,890.68 = 86,364.43 : x - Step 2: Convert to fraction form
125,927.26/188,890.68 = 86,364.43/x - Step 3: Cross multiply
125,927.26x = 188,890.68 × 86,364.43 - Step 4: Simplify right side
125,927.26x = 16,313,435,910.51 - Step 5: Solve for x
x = 16,313,435,910.51/125,927.26 - Step 6: Final answer
x = 129,546.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.