Finding the Fourth Proportional to 186,974.76, 258,021.92 and 106,400.61
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Solution
The fourth proportional to 186,974.76, 258,021.92 and 106,400.61 is: 146,830.99
Step by Step Solution
- Step 1: Write the proportion equation
186,974.76 : 258,021.92 = 106,400.61 : x - Step 2: Convert to fraction form
186,974.76/258,021.92 = 106,400.61/x - Step 3: Cross multiply
186,974.76x = 258,021.92 × 106,400.61 - Step 4: Simplify right side
186,974.76x = 27,453,689,149.37 - Step 5: Solve for x
x = 27,453,689,149.37/186,974.76 - Step 6: Final answer
x = 146,830.99
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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.