Finding the Fourth Proportional to 189,121.07, 260,988.20 and 108,546.53
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Solution
The fourth proportional to 189,121.07, 260,988.20 and 108,546.53 is: 149,794.85
Step by Step Solution
- Step 1: Write the proportion equation
189,121.07 : 260,988.20 = 108,546.53 : x - Step 2: Convert to fraction form
189,121.07/260,988.20 = 108,546.53/x - Step 3: Cross multiply
189,121.07x = 260,988.20 × 108,546.53 - Step 4: Simplify right side
189,121.07x = 28,329,361,633.27 - Step 5: Solve for x
x = 28,329,361,633.27/189,121.07 - Step 6: Final answer
x = 149,794.85
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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.