Finding the Fourth Proportional to 88,198.11, 121,717.62 and 54,208.08
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Solution
The fourth proportional to 88,198.11, 121,717.62 and 54,208.08 is: 74,809.75
Step by Step Solution
- Step 1: Write the proportion equation
88,198.11 : 121,717.62 = 54,208.08 : x - Step 2: Convert to fraction form
88,198.11/121,717.62 = 54,208.08/x - Step 3: Cross multiply
88,198.11x = 121,717.62 × 54,208.08 - Step 4: Simplify right side
88,198.11x = 6,598,078,482.37 - Step 5: Solve for x
x = 6,598,078,482.37/88,198.11 - Step 6: Final answer
x = 74,809.75
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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.