Finding the Fourth Proportional to 100,912.92, 138,251.39 and 97,129.44
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Solution
The fourth proportional to 100,912.92, 138,251.39 and 97,129.44 is: 133,068.00
Step by Step Solution
- Step 1: Write the proportion equation
100,912.92 : 138,251.39 = 97,129.44 : x - Step 2: Convert to fraction form
100,912.92/138,251.39 = 97,129.44/x - Step 3: Cross multiply
100,912.92x = 138,251.39 × 97,129.44 - Step 4: Simplify right side
100,912.92x = 13,428,280,089.92 - Step 5: Solve for x
x = 13,428,280,089.92/100,912.92 - Step 6: Final answer
x = 133,068.00
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.