Finding the Fourth Proportional to 146,503.85, 202,138.86 and 85,260.09
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Solution
The fourth proportional to 146,503.85, 202,138.86 and 85,260.09 is: 117,637.71
Step by Step Solution
- Step 1: Write the proportion equation
146,503.85 : 202,138.86 = 85,260.09 : x - Step 2: Convert to fraction form
146,503.85/202,138.86 = 85,260.09/x - Step 3: Cross multiply
146,503.85x = 202,138.86 × 85,260.09 - Step 4: Simplify right side
146,503.85x = 17,234,377,396.10 - Step 5: Solve for x
x = 17,234,377,396.10/146,503.85 - Step 6: Final answer
x = 117,637.71
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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.