Finding the Fourth Proportional to 99,102.11, 136,761.00 and 53,780.09
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Solution
The fourth proportional to 99,102.11, 136,761.00 and 53,780.09 is: 74,216.58
Step by Step Solution
- Step 1: Write the proportion equation
99,102.11 : 136,761.00 = 53,780.09 : x - Step 2: Convert to fraction form
99,102.11/136,761.00 = 53,780.09/x - Step 3: Cross multiply
99,102.11x = 136,761.00 × 53,780.09 - Step 4: Simplify right side
99,102.11x = 7,355,019,459.44 - Step 5: Solve for x
x = 7,355,019,459.44/99,102.11 - Step 6: Final answer
x = 74,216.58
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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.