Finding the Fourth Proportional to 122,414.40, 168,934.94 and 68,703.70
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Solution
The fourth proportional to 122,414.40, 168,934.94 and 68,703.70 is: 94,812.83
Step by Step Solution
- Step 1: Write the proportion equation
122,414.40 : 168,934.94 = 68,703.70 : x - Step 2: Convert to fraction form
122,414.40/168,934.94 = 68,703.70/x - Step 3: Cross multiply
122,414.40x = 168,934.94 × 68,703.70 - Step 4: Simplify right side
122,414.40x = 11,606,455,437.28 - Step 5: Solve for x
x = 11,606,455,437.28/122,414.40 - Step 6: Final answer
x = 94,812.83
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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.