Finding the Fourth Proportional to 129,305.12, 193,935.68 and 35,788.96
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Solution
The fourth proportional to 129,305.12, 193,935.68 and 35,788.96 is: 53,677.35
Step by Step Solution
- Step 1: Write the proportion equation
129,305.12 : 193,935.68 = 35,788.96 : x - Step 2: Convert to fraction form
129,305.12/193,935.68 = 35,788.96/x - Step 3: Cross multiply
129,305.12x = 193,935.68 × 35,788.96 - Step 4: Simplify right side
129,305.12x = 6,940,756,294.09 - Step 5: Solve for x
x = 6,940,756,294.09/129,305.12 - Step 6: Final answer
x = 53,677.35
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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.