Finding the Fourth Proportional to 106,989.63, 160,451.51 and 40,461.09
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Solution
The fourth proportional to 106,989.63, 160,451.51 and 40,461.09 is: 60,679.18
Step by Step Solution
- Step 1: Write the proportion equation
106,989.63 : 160,451.51 = 40,461.09 : x - Step 2: Convert to fraction form
106,989.63/160,451.51 = 40,461.09/x - Step 3: Cross multiply
106,989.63x = 160,451.51 × 40,461.09 - Step 4: Simplify right side
106,989.63x = 6,492,042,784.44 - Step 5: Solve for x
x = 6,492,042,784.44/106,989.63 - Step 6: Final answer
x = 60,679.18
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.