Finding the Fourth Proportional to 136,819.79, 205,229.67 and 69,341.31
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Solution
The fourth proportional to 136,819.79, 205,229.67 and 69,341.31 is: 104,011.96
Step by Step Solution
- Step 1: Write the proportion equation
136,819.79 : 205,229.67 = 69,341.31 : x - Step 2: Convert to fraction form
136,819.79/205,229.67 = 69,341.31/x - Step 3: Cross multiply
136,819.79x = 205,229.67 × 69,341.31 - Step 4: Simplify right side
136,819.79x = 14,230,893,963.24 - Step 5: Solve for x
x = 14,230,893,963.24/136,819.79 - Step 6: Final answer
x = 104,011.96
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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.