Finding the Fourth Proportional to 102,769.09, 153,779.96 and 84,832.96
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Solution
The fourth proportional to 102,769.09, 153,779.96 and 84,832.96 is: 126,940.98
Step by Step Solution
- Step 1: Write the proportion equation
102,769.09 : 153,779.96 = 84,832.96 : x - Step 2: Convert to fraction form
102,769.09/153,779.96 = 84,832.96/x - Step 3: Cross multiply
102,769.09x = 153,779.96 × 84,832.96 - Step 4: Simplify right side
102,769.09x = 13,045,608,638.66 - Step 5: Solve for x
x = 13,045,608,638.66/102,769.09 - Step 6: Final answer
x = 126,940.98
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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.