Finding the Fourth Proportional to 139,597.09, 192,643.12 and 75,935.14
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Solution
The fourth proportional to 139,597.09, 192,643.12 and 75,935.14 is: 104,790.02
Step by Step Solution
- Step 1: Write the proportion equation
139,597.09 : 192,643.12 = 75,935.14 : x - Step 2: Convert to fraction form
139,597.09/192,643.12 = 75,935.14/x - Step 3: Cross multiply
139,597.09x = 192,643.12 × 75,935.14 - Step 4: Simplify right side
139,597.09x = 14,628,382,287.24 - Step 5: Solve for x
x = 14,628,382,287.24/139,597.09 - Step 6: Final answer
x = 104,790.02
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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.