Finding the Fourth Proportional to 188,701.09, 260,409.57 and 102,660.56
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Solution
The fourth proportional to 188,701.09, 260,409.57 and 102,660.56 is: 141,672.69
Step by Step Solution
- Step 1: Write the proportion equation
188,701.09 : 260,409.57 = 102,660.56 : x - Step 2: Convert to fraction form
188,701.09/260,409.57 = 102,660.56/x - Step 3: Cross multiply
188,701.09x = 260,409.57 × 102,660.56 - Step 4: Simplify right side
188,701.09x = 26,733,791,575.07 - Step 5: Solve for x
x = 26,733,791,575.07/188,701.09 - Step 6: Final answer
x = 141,672.69
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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.