Finding the Fourth Proportional to 189,688.08, 261,766.44 and 104,808.72
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Solution
The fourth proportional to 189,688.08, 261,766.44 and 104,808.72 is: 144,634.32
Step by Step Solution
- Step 1: Write the proportion equation
189,688.08 : 261,766.44 = 104,808.72 : x - Step 2: Convert to fraction form
189,688.08/261,766.44 = 104,808.72/x - Step 3: Cross multiply
189,688.08x = 261,766.44 × 104,808.72 - Step 4: Simplify right side
189,688.08x = 27,435,405,515.36 - Step 5: Solve for x
x = 27,435,405,515.36/189,688.08 - Step 6: Final answer
x = 144,634.32
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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.