Finding the Fourth Proportional to 98,077.26, 135,422.64 and 75,379.98
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Solution
The fourth proportional to 98,077.26, 135,422.64 and 75,379.98 is: 104,082.80
Step by Step Solution
- Step 1: Write the proportion equation
98,077.26 : 135,422.64 = 75,379.98 : x - Step 2: Convert to fraction form
98,077.26/135,422.64 = 75,379.98/x - Step 3: Cross multiply
98,077.26x = 135,422.64 × 75,379.98 - Step 4: Simplify right side
98,077.26x = 10,208,155,894.75 - Step 5: Solve for x
x = 10,208,155,894.75/98,077.26 - Step 6: Final answer
x = 104,082.80
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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.