Finding the Fourth Proportional to 189,654.18, 261,722.61 and 104,770.86
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Solution
The fourth proportional to 189,654.18, 261,722.61 and 104,770.86 is: 144,583.70
Step by Step Solution
- Step 1: Write the proportion equation
189,654.18 : 261,722.61 = 104,770.86 : x - Step 2: Convert to fraction form
189,654.18/261,722.61 = 104,770.86/x - Step 3: Cross multiply
189,654.18x = 261,722.61 × 104,770.86 - Step 4: Simplify right side
189,654.18x = 27,420,902,931.14 - Step 5: Solve for x
x = 27,420,902,931.14/189,654.18 - Step 6: Final answer
x = 144,583.70
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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.