Finding the Fourth Proportional to 189,691.08, 261,770.58 and 104,811.72
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Solution
The fourth proportional to 189,691.08, 261,770.58 and 104,811.72 is: 144,638.45
Step by Step Solution
- Step 1: Write the proportion equation
189,691.08 : 261,770.58 = 104,811.72 : x - Step 2: Convert to fraction form
189,691.08/261,770.58 = 104,811.72/x - Step 3: Cross multiply
189,691.08x = 261,770.58 × 104,811.72 - Step 4: Simplify right side
189,691.08x = 27,436,624,735.20 - Step 5: Solve for x
x = 27,436,624,735.20/189,691.08 - Step 6: Final answer
x = 144,638.45
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1.5x scale
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.