Finding the Fourth Proportional to 132,145.14, 182,367.64 and 74,787.42
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Solution
The fourth proportional to 132,145.14, 182,367.64 and 74,787.42 is: 103,210.80
Step by Step Solution
- Step 1: Write the proportion equation
132,145.14 : 182,367.64 = 74,787.42 : x - Step 2: Convert to fraction form
132,145.14/182,367.64 = 74,787.42/x - Step 3: Cross multiply
132,145.14x = 182,367.64 × 74,787.42 - Step 4: Simplify right side
132,145.14x = 13,638,805,287.09 - Step 5: Solve for x
x = 13,638,805,287.09/132,145.14 - Step 6: Final answer
x = 103,210.80
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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.