Finding the Fourth Proportional to 122,254.72, 168,711.39 and 68,539.75
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Solution
The fourth proportional to 122,254.72, 168,711.39 and 68,539.75 is: 94,584.79
Step by Step Solution
- Step 1: Write the proportion equation
122,254.72 : 168,711.39 = 68,539.75 : x - Step 2: Convert to fraction form
122,254.72/168,711.39 = 68,539.75/x - Step 3: Cross multiply
122,254.72x = 168,711.39 × 68,539.75 - Step 4: Simplify right side
122,254.72x = 11,563,436,492.75 - Step 5: Solve for x
x = 11,563,436,492.75/122,254.72 - Step 6: Final answer
x = 94,584.79
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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.