Finding the Fourth Proportional to 145,219.10, 217,537.05 and 82,816.70
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Solution
The fourth proportional to 145,219.10, 217,537.05 and 82,816.70 is: 124,058.75
Step by Step Solution
- Step 1: Write the proportion equation
145,219.10 : 217,537.05 = 82,816.70 : x - Step 2: Convert to fraction form
145,219.10/217,537.05 = 82,816.70/x - Step 3: Cross multiply
145,219.10x = 217,537.05 × 82,816.70 - Step 4: Simplify right side
145,219.10x = 18,015,700,608.74 - Step 5: Solve for x
x = 18,015,700,608.74/145,219.10 - Step 6: Final answer
x = 124,058.75
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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.