Finding the Fourth Proportional to 132,158.54, 182,378.87 and 71,729.18
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Solution
The fourth proportional to 132,158.54, 182,378.87 and 71,729.18 is: 98,986.32
Step by Step Solution
- Step 1: Write the proportion equation
132,158.54 : 182,378.87 = 71,729.18 : x - Step 2: Convert to fraction form
132,158.54/182,378.87 = 71,729.18/x - Step 3: Cross multiply
132,158.54x = 182,378.87 × 71,729.18 - Step 4: Simplify right side
132,158.54x = 13,081,886,387.13 - Step 5: Solve for x
x = 13,081,886,387.13/132,158.54 - Step 6: Final answer
x = 98,986.32
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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.