Finding the Fourth Proportional to 129,269.52, 193,799.49 and 58,140.08
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Solution
The fourth proportional to 129,269.52, 193,799.49 and 58,140.08 is: 87,162.99
Step by Step Solution
- Step 1: Write the proportion equation
129,269.52 : 193,799.49 = 58,140.08 : x - Step 2: Convert to fraction form
129,269.52/193,799.49 = 58,140.08/x - Step 3: Cross multiply
129,269.52x = 193,799.49 × 58,140.08 - Step 4: Simplify right side
129,269.52x = 11,267,517,392.28 - Step 5: Solve for x
x = 11,267,517,392.28/129,269.52 - Step 6: Final answer
x = 87,162.99
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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.