Finding the Fourth Proportional to 115,621.80, 173,531.46 and 82,423.08
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Solution
The fourth proportional to 115,621.80, 173,531.46 and 82,423.08 is: 123,705.02
Step by Step Solution
- Step 1: Write the proportion equation
115,621.80 : 173,531.46 = 82,423.08 : x - Step 2: Convert to fraction form
115,621.80/173,531.46 = 82,423.08/x - Step 3: Cross multiply
115,621.80x = 173,531.46 × 82,423.08 - Step 4: Simplify right side
115,621.80x = 14,302,997,410.10 - Step 5: Solve for x
x = 14,302,997,410.10/115,621.80 - Step 6: Final answer
x = 123,705.02
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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.