Finding the Fourth Proportional to 129,944.93, 194,985.71 and 92,237.54
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Solution
The fourth proportional to 129,944.93, 194,985.71 and 92,237.54 is: 138,404.80
Step by Step Solution
- Step 1: Write the proportion equation
129,944.93 : 194,985.71 = 92,237.54 : x - Step 2: Convert to fraction form
129,944.93/194,985.71 = 92,237.54/x - Step 3: Cross multiply
129,944.93x = 194,985.71 × 92,237.54 - Step 4: Simplify right side
129,944.93x = 17,985,002,943.61 - Step 5: Solve for x
x = 17,985,002,943.61/129,944.93 - Step 6: Final answer
x = 138,404.80
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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.