Finding the Fourth Proportional to 138,609.84, 207,940.41 and 43,863.84
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Solution
The fourth proportional to 138,609.84, 207,940.41 and 43,863.84 is: 65,803.88
Step by Step Solution
- Step 1: Write the proportion equation
138,609.84 : 207,940.41 = 43,863.84 : x - Step 2: Convert to fraction form
138,609.84/207,940.41 = 43,863.84/x - Step 3: Cross multiply
138,609.84x = 207,940.41 × 43,863.84 - Step 4: Simplify right side
138,609.84x = 9,121,064,873.77 - Step 5: Solve for x
x = 9,121,064,873.77/138,609.84 - Step 6: Final answer
x = 65,803.88
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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.