Finding the Fourth Proportional to 104,082.80, 143,595.84 and 68,292.68
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Solution
The fourth proportional to 104,082.80, 143,595.84 and 68,292.68 is: 94,218.69
Step by Step Solution
- Step 1: Write the proportion equation
104,082.80 : 143,595.84 = 68,292.68 : x - Step 2: Convert to fraction form
104,082.80/143,595.84 = 68,292.68/x - Step 3: Cross multiply
104,082.80x = 143,595.84 × 68,292.68 - Step 4: Simplify right side
104,082.80x = 9,806,544,750.45 - Step 5: Solve for x
x = 9,806,544,750.45/104,082.80 - Step 6: Final answer
x = 94,218.69
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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.