Finding the Fourth Proportional to 159,699.98, 220,387.02 and 88,081.94
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Solution
The fourth proportional to 159,699.98, 220,387.02 and 88,081.94 is: 121,553.65
Step by Step Solution
- Step 1: Write the proportion equation
159,699.98 : 220,387.02 = 88,081.94 : x - Step 2: Convert to fraction form
159,699.98/220,387.02 = 88,081.94/x - Step 3: Cross multiply
159,699.98x = 220,387.02 × 88,081.94 - Step 4: Simplify right side
159,699.98x = 19,412,116,272.42 - Step 5: Solve for x
x = 19,412,116,272.42/159,699.98 - Step 6: Final answer
x = 121,553.65
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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.