Finding the Fourth Proportional to 186,696.75, 257,631.37 and 106,113.09
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Solution
The fourth proportional to 186,696.75, 257,631.37 and 106,113.09 is: 146,430.30
Step by Step Solution
- Step 1: Write the proportion equation
186,696.75 : 257,631.37 = 106,113.09 : x - Step 2: Convert to fraction form
186,696.75/257,631.37 = 106,113.09/x - Step 3: Cross multiply
186,696.75x = 257,631.37 × 106,113.09 - Step 4: Simplify right side
186,696.75x = 27,338,060,751.63 - Step 5: Solve for x
x = 27,338,060,751.63/186,696.75 - Step 6: Final answer
x = 146,430.30
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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.