Finding the Fourth Proportional to 144,220.96, 199,028.96 and 79,694.36
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Solution
The fourth proportional to 144,220.96, 199,028.96 and 79,694.36 is: 109,980.45
Step by Step Solution
- Step 1: Write the proportion equation
144,220.96 : 199,028.96 = 79,694.36 : x - Step 2: Convert to fraction form
144,220.96/199,028.96 = 79,694.36/x - Step 3: Cross multiply
144,220.96x = 199,028.96 × 79,694.36 - Step 4: Simplify right side
144,220.96x = 15,861,485,588.67 - Step 5: Solve for x
x = 15,861,485,588.67/144,220.96 - Step 6: Final answer
x = 109,980.45
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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.