Finding the Fourth Proportional to 125,929.82, 188,894.53 and 86,366.99
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Solution
The fourth proportional to 125,929.82, 188,894.53 and 86,366.99 is: 129,550.35
Step by Step Solution
- Step 1: Write the proportion equation
125,929.82 : 188,894.53 = 86,366.99 : x - Step 2: Convert to fraction form
125,929.82/188,894.53 = 86,366.99/x - Step 3: Cross multiply
125,929.82x = 188,894.53 × 86,366.99 - Step 4: Simplify right side
125,929.82x = 16,314,252,563.76 - Step 5: Solve for x
x = 16,314,252,563.76/125,929.82 - Step 6: Final answer
x = 129,550.35
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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.