Finding the Fourth Proportional to 122,226.19, 168,671.92 and 68,511.19
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Solution
The fourth proportional to 122,226.19, 168,671.92 and 68,511.19 is: 94,545.32
Step by Step Solution
- Step 1: Write the proportion equation
122,226.19 : 168,671.92 = 68,511.19 : x - Step 2: Convert to fraction form
122,226.19/168,671.92 = 68,511.19/x - Step 3: Cross multiply
122,226.19x = 168,671.92 × 68,511.19 - Step 4: Simplify right side
122,226.19x = 11,555,914,284.94 - Step 5: Solve for x
x = 11,555,914,284.94/122,226.19 - Step 6: Final answer
x = 94,545.32
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1.5x scale
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.