Finding the Fourth Proportional to 189,187.26, 261,078.26 and 108,619.70
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Solution
The fourth proportional to 189,187.26, 261,078.26 and 108,619.70 is: 149,895.09
Step by Step Solution
- Step 1: Write the proportion equation
189,187.26 : 261,078.26 = 108,619.70 : x - Step 2: Convert to fraction form
189,187.26/261,078.26 = 108,619.70/x - Step 3: Cross multiply
189,187.26x = 261,078.26 × 108,619.70 - Step 4: Simplify right side
189,187.26x = 28,358,241,897.80 - Step 5: Solve for x
x = 28,358,241,897.80/189,187.26 - Step 6: Final answer
x = 149,895.09
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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.