Finding the Fourth Proportional to 186,872.87, 257,880.97 and 101,990.54
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Solution
The fourth proportional to 186,872.87, 257,880.97 and 101,990.54 is: 140,744.99
Step by Step Solution
- Step 1: Write the proportion equation
186,872.87 : 257,880.97 = 101,990.54 : x - Step 2: Convert to fraction form
186,872.87/257,880.97 = 101,990.54/x - Step 3: Cross multiply
186,872.87x = 257,880.97 × 101,990.54 - Step 4: Simplify right side
186,872.87x = 26,301,419,386.02 - Step 5: Solve for x
x = 26,301,419,386.02/186,872.87 - Step 6: Final answer
x = 140,744.99
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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.