Finding the Fourth Proportional to 122,532.87, 169,095.39 and 68,817.96
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Solution
The fourth proportional to 122,532.87, 169,095.39 and 68,817.96 is: 94,968.80
Step by Step Solution
- Step 1: Write the proportion equation
122,532.87 : 169,095.39 = 68,817.96 : x - Step 2: Convert to fraction form
122,532.87/169,095.39 = 68,817.96/x - Step 3: Cross multiply
122,532.87x = 169,095.39 × 68,817.96 - Step 4: Simplify right side
122,532.87x = 11,636,799,785.20 - Step 5: Solve for x
x = 11,636,799,785.20/122,532.87 - Step 6: Final answer
x = 94,968.80
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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.