Finding the Fourth Proportional to 143,433.26, 197,943.36 and 79,775.66
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Solution
The fourth proportional to 143,433.26, 197,943.36 and 79,775.66 is: 110,093.45
Step by Step Solution
- Step 1: Write the proportion equation
143,433.26 : 197,943.36 = 79,775.66 : x - Step 2: Convert to fraction form
143,433.26/197,943.36 = 79,775.66/x - Step 3: Cross multiply
143,433.26x = 197,943.36 × 79,775.66 - Step 4: Simplify right side
143,433.26x = 15,791,062,186.62 - Step 5: Solve for x
x = 15,791,062,186.62/143,433.26 - Step 6: Final answer
x = 110,093.45
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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.