Finding the Fourth Proportional to 115,619.80, 173,528.46 and 82,421.08
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Solution
The fourth proportional to 115,619.80, 173,528.46 and 82,421.08 is: 123,702.02
Step by Step Solution
- Step 1: Write the proportion equation
115,619.80 : 173,528.46 = 82,421.08 : x - Step 2: Convert to fraction form
115,619.80/173,528.46 = 82,421.08/x - Step 3: Cross multiply
115,619.80x = 173,528.46 × 82,421.08 - Step 4: Simplify right side
115,619.80x = 14,302,403,083.94 - Step 5: Solve for x
x = 14,302,403,083.94/115,619.80 - Step 6: Final answer
x = 123,702.02
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.