Finding the Fourth Proportional to 135,429.49, 203,222.01 and 105,764.05
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Solution
The fourth proportional to 135,429.49, 203,222.01 and 105,764.05 is: 158,706.81
Step by Step Solution
- Step 1: Write the proportion equation
135,429.49 : 203,222.01 = 105,764.05 : x - Step 2: Convert to fraction form
135,429.49/203,222.01 = 105,764.05/x - Step 3: Cross multiply
135,429.49x = 203,222.01 × 105,764.05 - Step 4: Simplify right side
135,429.49x = 21,493,582,826.74 - Step 5: Solve for x
x = 21,493,582,826.74/135,429.49 - Step 6: Final answer
x = 158,706.81
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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.