Finding the Fourth Proportional to 138,735.68, 208,103.61 and 33,554.75
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Solution
The fourth proportional to 138,735.68, 208,103.61 and 33,554.75 is: 50,332.14
Step by Step Solution
- Step 1: Write the proportion equation
138,735.68 : 208,103.61 = 33,554.75 : x - Step 2: Convert to fraction form
138,735.68/208,103.61 = 33,554.75/x - Step 3: Cross multiply
138,735.68x = 208,103.61 × 33,554.75 - Step 4: Simplify right side
138,735.68x = 6,982,863,567.13 - Step 5: Solve for x
x = 6,982,863,567.13/138,735.68 - Step 6: Final answer
x = 50,332.14
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1.5x scale
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.