Finding the Fourth Proportional to 143,176.14, 197,583.54 and 79,513.94
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Solution
The fourth proportional to 143,176.14, 197,583.54 and 79,513.94 is: 109,729.50
Step by Step Solution
- Step 1: Write the proportion equation
143,176.14 : 197,583.54 = 79,513.94 : x - Step 2: Convert to fraction form
143,176.14/197,583.54 = 79,513.94/x - Step 3: Cross multiply
143,176.14x = 197,583.54 × 79,513.94 - Step 4: Simplify right side
143,176.14x = 15,710,645,744.55 - Step 5: Solve for x
x = 15,710,645,744.55/143,176.14 - Step 6: Final answer
x = 109,729.50
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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.