Finding the Fourth Proportional to 143,447.27, 197,954.42 and 79,783.70
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Solution
The fourth proportional to 143,447.27, 197,954.42 and 79,783.70 is: 110,099.94
Step by Step Solution
- Step 1: Write the proportion equation
143,447.27 : 197,954.42 = 79,783.70 : x - Step 2: Convert to fraction form
143,447.27/197,954.42 = 79,783.70/x - Step 3: Cross multiply
143,447.27x = 197,954.42 × 79,783.70 - Step 4: Simplify right side
143,447.27x = 15,793,534,670.26 - Step 5: Solve for x
x = 15,793,534,670.26/143,447.27 - Step 6: Final answer
x = 110,099.94
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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.