Finding the Fourth Proportional to 189,174.68, 260,913.38 and 121,197.95
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Solution
The fourth proportional to 189,174.68, 260,913.38 and 121,197.95 is: 167,158.56
Step by Step Solution
- Step 1: Write the proportion equation
189,174.68 : 260,913.38 = 121,197.95 : x - Step 2: Convert to fraction form
189,174.68/260,913.38 = 121,197.95/x - Step 3: Cross multiply
189,174.68x = 260,913.38 × 121,197.95 - Step 4: Simplify right side
189,174.68x = 31,622,166,783.57 - Step 5: Solve for x
x = 31,622,166,783.57/189,174.68 - Step 6: Final answer
x = 167,158.56
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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.