Finding the Fourth Proportional to 136,125.09, 187,824.96 and 79,525.53
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Solution
The fourth proportional to 136,125.09, 187,824.96 and 79,525.53 is: 109,729.07
Step by Step Solution
- Step 1: Write the proportion equation
136,125.09 : 187,824.96 = 79,525.53 : x - Step 2: Convert to fraction form
136,125.09/187,824.96 = 79,525.53/x - Step 3: Cross multiply
136,125.09x = 187,824.96 × 79,525.53 - Step 4: Simplify right side
136,125.09x = 14,936,879,491.23 - Step 5: Solve for x
x = 14,936,879,491.23/136,125.09 - Step 6: Final answer
x = 109,729.07
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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.