Finding the Fourth Proportional to 122,336.80, 168,821.99 and 68,620.57
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Solution
The fourth proportional to 122,336.80, 168,821.99 and 68,620.57 is: 94,694.82
Step by Step Solution
- Step 1: Write the proportion equation
122,336.80 : 168,821.99 = 68,620.57 : x - Step 2: Convert to fraction form
122,336.80/168,821.99 = 68,620.57/x - Step 3: Cross multiply
122,336.80x = 168,821.99 × 68,620.57 - Step 4: Simplify right side
122,336.80x = 11,584,660,674.50 - Step 5: Solve for x
x = 11,584,660,674.50/122,336.80 - Step 6: Final answer
x = 94,694.82
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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.