Finding the Fourth Proportional to 125,930.26, 188,895.16 and 86,367.43
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Solution
The fourth proportional to 125,930.26, 188,895.16 and 86,367.43 is: 129,550.99
Step by Step Solution
- Step 1: Write the proportion equation
125,930.26 : 188,895.16 = 86,367.43 : x - Step 2: Convert to fraction form
125,930.26/188,895.16 = 86,367.43/x - Step 3: Cross multiply
125,930.26x = 188,895.16 × 86,367.43 - Step 4: Simplify right side
125,930.26x = 16,314,389,508.64 - Step 5: Solve for x
x = 16,314,389,508.64/125,930.26 - Step 6: Final answer
x = 129,550.99
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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.