Finding the Fourth Proportional to 122,491.36, 169,047.84 and 68,779.96
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Solution
The fourth proportional to 122,491.36, 169,047.84 and 68,779.96 is: 94,921.83
Step by Step Solution
- Step 1: Write the proportion equation
122,491.36 : 169,047.84 = 68,779.96 : x - Step 2: Convert to fraction form
122,491.36/169,047.84 = 68,779.96/x - Step 3: Cross multiply
122,491.36x = 169,047.84 × 68,779.96 - Step 4: Simplify right side
122,491.36x = 11,627,103,673.29 - Step 5: Solve for x
x = 11,627,103,673.29/122,491.36 - Step 6: Final answer
x = 94,921.83
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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.