Finding the Fourth Proportional to 189,078.79, 260,916.36 and 104,195.83
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Solution
The fourth proportional to 189,078.79, 260,916.36 and 104,195.83 is: 143,783.43
Step by Step Solution
- Step 1: Write the proportion equation
189,078.79 : 260,916.36 = 104,195.83 : x - Step 2: Convert to fraction form
189,078.79/260,916.36 = 104,195.83/x - Step 3: Cross multiply
189,078.79x = 260,916.36 × 104,195.83 - Step 4: Simplify right side
189,078.79x = 27,186,396,690.78 - Step 5: Solve for x
x = 27,186,396,690.78/189,078.79 - Step 6: Final answer
x = 143,783.43
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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.