Finding the Fourth Proportional to 125,396.60, 189,211.96 and 120,536.12
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Solution
The fourth proportional to 125,396.60, 189,211.96 and 120,536.12 is: 181,877.94
Step by Step Solution
- Step 1: Write the proportion equation
125,396.60 : 189,211.96 = 120,536.12 : x - Step 2: Convert to fraction form
125,396.60/189,211.96 = 120,536.12/x - Step 3: Cross multiply
125,396.60x = 189,211.96 × 120,536.12 - Step 4: Simplify right side
125,396.60x = 22,806,875,516.00 - Step 5: Solve for x
x = 22,806,875,516.00/125,396.60 - Step 6: Final answer
x = 181,877.94
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.