Finding the Fourth Proportional to 138,554.09, 207,829.88 and 43,784.29
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Solution
The fourth proportional to 138,554.09, 207,829.88 and 43,784.29 is: 65,676.03
Step by Step Solution
- Step 1: Write the proportion equation
138,554.09 : 207,829.88 = 43,784.29 : x - Step 2: Convert to fraction form
138,554.09/207,829.88 = 43,784.29/x - Step 3: Cross multiply
138,554.09x = 207,829.88 × 43,784.29 - Step 4: Simplify right side
138,554.09x = 9,099,682,533.24 - Step 5: Solve for x
x = 9,099,682,533.24/138,554.09 - Step 6: Final answer
x = 65,676.03
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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.