Finding the Fourth Proportional to 138,181.35, 207,260.11 and 84,132.02
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Solution
The fourth proportional to 138,181.35, 207,260.11 and 84,132.02 is: 126,190.78
Step by Step Solution
- Step 1: Write the proportion equation
138,181.35 : 207,260.11 = 84,132.02 : x - Step 2: Convert to fraction form
138,181.35/207,260.11 = 84,132.02/x - Step 3: Cross multiply
138,181.35x = 207,260.11 × 84,132.02 - Step 4: Simplify right side
138,181.35x = 17,437,211,719.72 - Step 5: Solve for x
x = 17,437,211,719.72/138,181.35 - Step 6: Final answer
x = 126,190.78
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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.