Finding the Fourth Proportional to 134,839.26, 186,075.09 and 74,415.60
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Solution
The fourth proportional to 134,839.26, 186,075.09 and 74,415.60 is: 102,691.82
Step by Step Solution
- Step 1: Write the proportion equation
134,839.26 : 186,075.09 = 74,415.60 : x - Step 2: Convert to fraction form
134,839.26/186,075.09 = 74,415.60/x - Step 3: Cross multiply
134,839.26x = 186,075.09 × 74,415.60 - Step 4: Simplify right side
134,839.26x = 13,846,889,467.40 - Step 5: Solve for x
x = 13,846,889,467.40/134,839.26 - Step 6: Final answer
x = 102,691.82
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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.