Finding the Fourth Proportional to 135,516.97, 203,140.14 and 90,576.18
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Solution
The fourth proportional to 135,516.97, 203,140.14 and 90,576.18 is: 135,773.83
Step by Step Solution
- Step 1: Write the proportion equation
135,516.97 : 203,140.14 = 90,576.18 : x - Step 2: Convert to fraction form
135,516.97/203,140.14 = 90,576.18/x - Step 3: Cross multiply
135,516.97x = 203,140.14 × 90,576.18 - Step 4: Simplify right side
135,516.97x = 18,399,657,546.20 - Step 5: Solve for x
x = 18,399,657,546.20/135,516.97 - Step 6: Final answer
x = 135,773.83
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.