Finding the Fourth Proportional to 144,532.11, 199,438.71 and 79,991.09
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Solution
The fourth proportional to 144,532.11, 199,438.71 and 79,991.09 is: 110,379.07
Step by Step Solution
- Step 1: Write the proportion equation
144,532.11 : 199,438.71 = 79,991.09 : x - Step 2: Convert to fraction form
144,532.11/199,438.71 = 79,991.09/x - Step 3: Cross multiply
144,532.11x = 199,438.71 × 79,991.09 - Step 4: Simplify right side
144,532.11x = 15,953,319,401.14 - Step 5: Solve for x
x = 15,953,319,401.14/144,532.11 - Step 6: Final answer
x = 110,379.07
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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.