Finding the Fourth Proportional to 127,965.67, 191,985.39 and 39,232.26
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Solution
The fourth proportional to 127,965.67, 191,985.39 and 39,232.26 is: 58,859.70
Step by Step Solution
- Step 1: Write the proportion equation
127,965.67 : 191,985.39 = 39,232.26 : x - Step 2: Convert to fraction form
127,965.67/191,985.39 = 39,232.26/x - Step 3: Cross multiply
127,965.67x = 191,985.39 × 39,232.26 - Step 4: Simplify right side
127,965.67x = 7,532,020,736.68 - Step 5: Solve for x
x = 7,532,020,736.68/127,965.67 - Step 6: Final answer
x = 58,859.70
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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.