Finding the Fourth Proportional to 98,206.12, 135,519.62 and 55,759.08
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Solution
The fourth proportional to 98,206.12, 135,519.62 and 55,759.08 is: 76,944.79
Step by Step Solution
- Step 1: Write the proportion equation
98,206.12 : 135,519.62 = 55,759.08 : x - Step 2: Convert to fraction form
98,206.12/135,519.62 = 55,759.08/x - Step 3: Cross multiply
98,206.12x = 135,519.62 × 55,759.08 - Step 4: Simplify right side
98,206.12x = 7,556,449,333.15 - Step 5: Solve for x
x = 7,556,449,333.15/98,206.12 - Step 6: Final answer
x = 76,944.79
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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.