Finding the Fourth Proportional to 104,906.28, 144,766.61 and 57,159.99
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Solution
The fourth proportional to 104,906.28, 144,766.61 and 57,159.99 is: 78,878.57
Step by Step Solution
- Step 1: Write the proportion equation
104,906.28 : 144,766.61 = 57,159.99 : x - Step 2: Convert to fraction form
104,906.28/144,766.61 = 57,159.99/x - Step 3: Cross multiply
104,906.28x = 144,766.61 × 57,159.99 - Step 4: Simplify right side
104,906.28x = 8,274,857,908.48 - Step 5: Solve for x
x = 8,274,857,908.48/104,906.28 - Step 6: Final answer
x = 78,878.57
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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.