Finding the Fourth Proportional to 129,805.44, 179,133.57 and 73,217.94
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Solution
The fourth proportional to 129,805.44, 179,133.57 and 73,217.94 is: 101,041.92
Step by Step Solution
- Step 1: Write the proportion equation
129,805.44 : 179,133.57 = 73,217.94 : x - Step 2: Convert to fraction form
129,805.44/179,133.57 = 73,217.94/x - Step 3: Cross multiply
129,805.44x = 179,133.57 × 73,217.94 - Step 4: Simplify right side
129,805.44x = 13,115,790,980.25 - Step 5: Solve for x
x = 13,115,790,980.25/129,805.44 - Step 6: Final answer
x = 101,041.92
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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.