Finding the Fourth Proportional to 129,804.99, 179,211.97 and 99,532.15
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Solution
The fourth proportional to 129,804.99, 179,211.97 and 99,532.15 is: 137,416.54
Step by Step Solution
- Step 1: Write the proportion equation
129,804.99 : 179,211.97 = 99,532.15 : x - Step 2: Convert to fraction form
129,804.99/179,211.97 = 99,532.15/x - Step 3: Cross multiply
129,804.99x = 179,211.97 × 99,532.15 - Step 4: Simplify right side
129,804.99x = 17,837,352,032.61 - Step 5: Solve for x
x = 17,837,352,032.61/129,804.99 - Step 6: Final answer
x = 137,416.54
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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.