Finding the Fourth Proportional to 143,447.94, 197,968.05 and 79,791.66
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Solution
The fourth proportional to 143,447.94, 197,968.05 and 79,791.66 is: 110,117.99
Step by Step Solution
- Step 1: Write the proportion equation
143,447.94 : 197,968.05 = 79,791.66 : x - Step 2: Convert to fraction form
143,447.94/197,968.05 = 79,791.66/x - Step 3: Cross multiply
143,447.94x = 197,968.05 × 79,791.66 - Step 4: Simplify right side
143,447.94x = 15,796,199,336.46 - Step 5: Solve for x
x = 15,796,199,336.46/143,447.94 - Step 6: Final answer
x = 110,117.99
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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.