Finding the Fourth Proportional to 122,229.68, 168,673.73 and 68,518.17
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Solution
The fourth proportional to 122,229.68, 168,673.73 and 68,518.17 is: 94,553.27
Step by Step Solution
- Step 1: Write the proportion equation
122,229.68 : 168,673.73 = 68,518.17 : x - Step 2: Convert to fraction form
122,229.68/168,673.73 = 68,518.17/x - Step 3: Cross multiply
122,229.68x = 168,673.73 × 68,518.17 - Step 4: Simplify right side
122,229.68x = 11,557,214,964.08 - Step 5: Solve for x
x = 11,557,214,964.08/122,229.68 - Step 6: Final answer
x = 94,553.27
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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.