Finding the Fourth Proportional to 100,864.36, 139,193.84 and 55,546.56
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Solution
The fourth proportional to 100,864.36, 139,193.84 and 55,546.56 is: 76,654.82
Step by Step Solution
- Step 1: Write the proportion equation
100,864.36 : 139,193.84 = 55,546.56 : x - Step 2: Convert to fraction form
100,864.36/139,193.84 = 55,546.56/x - Step 3: Cross multiply
100,864.36x = 139,193.84 × 55,546.56 - Step 4: Simplify right side
100,864.36x = 7,731,738,985.19 - Step 5: Solve for x
x = 7,731,738,985.19/100,864.36 - Step 6: Final answer
x = 76,654.82
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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.