Finding the Fourth Proportional to 102,721.83, 153,819.66 and 71,088.09
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Solution
The fourth proportional to 102,721.83, 153,819.66 and 71,088.09 is: 106,450.07
Step by Step Solution
- Step 1: Write the proportion equation
102,721.83 : 153,819.66 = 71,088.09 : x - Step 2: Convert to fraction form
102,721.83/153,819.66 = 71,088.09/x - Step 3: Cross multiply
102,721.83x = 153,819.66 × 71,088.09 - Step 4: Simplify right side
102,721.83x = 10,934,745,833.85 - Step 5: Solve for x
x = 10,934,745,833.85/102,721.83 - Step 6: Final answer
x = 106,450.07
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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.