Finding the Fourth Proportional to 159,350.79, 219,906.92 and 86,755.80
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Solution
The fourth proportional to 159,350.79, 219,906.92 and 86,755.80 is: 119,724.54
Step by Step Solution
- Step 1: Write the proportion equation
159,350.79 : 219,906.92 = 86,755.80 : x - Step 2: Convert to fraction form
159,350.79/219,906.92 = 86,755.80/x - Step 3: Cross multiply
159,350.79x = 219,906.92 × 86,755.80 - Step 4: Simplify right side
159,350.79x = 19,078,200,336.36 - Step 5: Solve for x
x = 19,078,200,336.36/159,350.79 - Step 6: Final answer
x = 119,724.54
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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.