Finding the Fourth Proportional to 129,629.17, 193,958.97 and 92,275.21
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Solution
The fourth proportional to 129,629.17, 193,958.97 and 92,275.21 is: 138,067.73
Step by Step Solution
- Step 1: Write the proportion equation
129,629.17 : 193,958.97 = 92,275.21 : x - Step 2: Convert to fraction form
129,629.17/193,958.97 = 92,275.21/x - Step 3: Cross multiply
129,629.17x = 193,958.97 × 92,275.21 - Step 4: Simplify right side
129,629.17x = 17,897,604,688.13 - Step 5: Solve for x
x = 17,897,604,688.13/129,629.17 - Step 6: Final answer
x = 138,067.73
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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.