Finding the Fourth Proportional to 97,910.75, 135,117.65 and 53,198.75
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Solution
The fourth proportional to 97,910.75, 135,117.65 and 53,198.75 is: 73,414.72
Step by Step Solution
- Step 1: Write the proportion equation
97,910.75 : 135,117.65 = 53,198.75 : x - Step 2: Convert to fraction form
97,910.75/135,117.65 = 53,198.75/x - Step 3: Cross multiply
97,910.75x = 135,117.65 × 53,198.75 - Step 4: Simplify right side
97,910.75x = 7,188,090,082.94 - Step 5: Solve for x
x = 7,188,090,082.94/97,910.75 - Step 6: Final answer
x = 73,414.72
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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.