Finding the Fourth Proportional to 98,198.75, 135,514.28 and 53,486.75
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Solution
The fourth proportional to 98,198.75, 135,514.28 and 53,486.75 is: 73,811.72
Step by Step Solution
- Step 1: Write the proportion equation
98,198.75 : 135,514.28 = 53,486.75 : x - Step 2: Convert to fraction form
98,198.75/135,514.28 = 53,486.75/x - Step 3: Cross multiply
98,198.75x = 135,514.28 × 53,486.75 - Step 4: Simplify right side
98,198.75x = 7,248,218,415.79 - Step 5: Solve for x
x = 7,248,218,415.79/98,198.75 - Step 6: Final answer
x = 73,811.72
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1.5x scale
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.