Finding the Fourth Proportional to 118,716.68, 163,829.03 and 65,004.99
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Solution
The fourth proportional to 118,716.68, 163,829.03 and 65,004.99 is: 89,706.89
Step by Step Solution
- Step 1: Write the proportion equation
118,716.68 : 163,829.03 = 65,004.99 : x - Step 2: Convert to fraction form
118,716.68/163,829.03 = 65,004.99/x - Step 3: Cross multiply
118,716.68x = 163,829.03 × 65,004.99 - Step 4: Simplify right side
118,716.68x = 10,649,704,131.83 - Step 5: Solve for x
x = 10,649,704,131.83/118,716.68 - Step 6: Final answer
x = 89,706.89
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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.