Finding the Fourth Proportional to 132,391.94, 182,680.52 and 78,657.08
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Solution
The fourth proportional to 132,391.94, 182,680.52 and 78,657.08 is: 108,534.68
Step by Step Solution
- Step 1: Write the proportion equation
132,391.94 : 182,680.52 = 78,657.08 : x - Step 2: Convert to fraction form
132,391.94/182,680.52 = 78,657.08/x - Step 3: Cross multiply
132,391.94x = 182,680.52 × 78,657.08 - Step 4: Simplify right side
132,391.94x = 14,369,116,276.08 - Step 5: Solve for x
x = 14,369,116,276.08/132,391.94 - Step 6: Final answer
x = 108,534.68
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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.