Finding the Fourth Proportional to 143,191.75, 197,604.62 and 79,535.47
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Solution
The fourth proportional to 143,191.75, 197,604.62 and 79,535.47 is: 109,758.95
Step by Step Solution
- Step 1: Write the proportion equation
143,191.75 : 197,604.62 = 79,535.47 : x - Step 2: Convert to fraction form
143,191.75/197,604.62 = 79,535.47/x - Step 3: Cross multiply
143,191.75x = 197,604.62 × 79,535.47 - Step 4: Simplify right side
143,191.75x = 15,716,576,325.87 - Step 5: Solve for x
x = 15,716,576,325.87/143,191.75 - Step 6: Final answer
x = 109,758.95
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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.