Finding the Fourth Proportional to 168,464.26, 232,478.92 and 91,983.12
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Solution
The fourth proportional to 168,464.26, 232,478.92 and 91,983.12 is: 126,935.75
Step by Step Solution
- Step 1: Write the proportion equation
168,464.26 : 232,478.92 = 91,983.12 : x - Step 2: Convert to fraction form
168,464.26/232,478.92 = 91,983.12/x - Step 3: Cross multiply
168,464.26x = 232,478.92 × 91,983.12 - Step 4: Simplify right side
168,464.26x = 21,384,136,395.83 - Step 5: Solve for x
x = 21,384,136,395.83/168,464.26 - Step 6: Final answer
x = 126,935.75
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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.