Finding the Fourth Proportional to 126,491.82, 174,558.99 and 69,132.06
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Solution
The fourth proportional to 126,491.82, 174,558.99 and 69,132.06 is: 95,402.39
Step by Step Solution
- Step 1: Write the proportion equation
126,491.82 : 174,558.99 = 69,132.06 : x - Step 2: Convert to fraction form
126,491.82/174,558.99 = 69,132.06/x - Step 3: Cross multiply
126,491.82x = 174,558.99 × 69,132.06 - Step 4: Simplify right side
126,491.82x = 12,067,622,570.22 - Step 5: Solve for x
x = 12,067,622,570.22/126,491.82 - Step 6: Final answer
x = 95,402.39
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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.