Finding the Fourth Proportional to 146,979.88, 202,826.36 and 86,553.07
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Solution
The fourth proportional to 146,979.88, 202,826.36 and 86,553.07 is: 119,439.77
Step by Step Solution
- Step 1: Write the proportion equation
146,979.88 : 202,826.36 = 86,553.07 : x - Step 2: Convert to fraction form
146,979.88/202,826.36 = 86,553.07/x - Step 3: Cross multiply
146,979.88x = 202,826.36 × 86,553.07 - Step 4: Simplify right side
146,979.88x = 17,555,242,688.03 - Step 5: Solve for x
x = 17,555,242,688.03/146,979.88 - Step 6: Final answer
x = 119,439.77
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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.