Finding the Fourth Proportional to 189,062.16, 260,902.68 and 103,022.18
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Solution
The fourth proportional to 189,062.16, 260,902.68 and 103,022.18 is: 142,168.92
Step by Step Solution
- Step 1: Write the proportion equation
189,062.16 : 260,902.68 = 103,022.18 : x - Step 2: Convert to fraction form
189,062.16/260,902.68 = 103,022.18/x - Step 3: Cross multiply
189,062.16x = 260,902.68 × 103,022.18 - Step 4: Simplify right side
189,062.16x = 26,878,762,861.44 - Step 5: Solve for x
x = 26,878,762,861.44/189,062.16 - Step 6: Final answer
x = 142,168.92
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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.