Finding the Fourth Proportional to 88,910.17, 122,740.64 and 68,721.46
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Solution
The fourth proportional to 88,910.17, 122,740.64 and 68,721.46 is: 94,870.09
Step by Step Solution
- Step 1: Write the proportion equation
88,910.17 : 122,740.64 = 68,721.46 : x - Step 2: Convert to fraction form
88,910.17/122,740.64 = 68,721.46/x - Step 3: Cross multiply
88,910.17x = 122,740.64 × 68,721.46 - Step 4: Simplify right side
88,910.17x = 8,434,915,982.13 - Step 5: Solve for x
x = 8,434,915,982.13/88,910.17 - Step 6: Final answer
x = 94,870.09
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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.