Finding the Fourth Proportional to 122,088.96, 168,486.48 and 68,373.84
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Solution
The fourth proportional to 122,088.96, 168,486.48 and 68,373.84 is: 94,357.98
Step by Step Solution
- Step 1: Write the proportion equation
122,088.96 : 168,486.48 = 68,373.84 : x - Step 2: Convert to fraction form
122,088.96/168,486.48 = 68,373.84/x - Step 3: Cross multiply
122,088.96x = 168,486.48 × 68,373.84 - Step 4: Simplify right side
122,088.96x = 11,520,067,625.68 - Step 5: Solve for x
x = 11,520,067,625.68/122,088.96 - Step 6: Final answer
x = 94,357.98
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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.