Finding the Fourth Proportional to 149,389.08, 206,164.62 and 82,321.08
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Solution
The fourth proportional to 149,389.08, 206,164.62 and 82,321.08 is: 113,607.33
Step by Step Solution
- Step 1: Write the proportion equation
149,389.08 : 206,164.62 = 82,321.08 : x - Step 2: Convert to fraction form
149,389.08/206,164.62 = 82,321.08/x - Step 3: Cross multiply
149,389.08x = 206,164.62 × 82,321.08 - Step 4: Simplify right side
149,389.08x = 16,971,694,176.19 - Step 5: Solve for x
x = 16,971,694,176.19/149,389.08 - Step 6: Final answer
x = 113,607.33
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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.