Finding the Fourth Proportional to 138,396.48, 207,124.02 and 85,060.41
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Solution
The fourth proportional to 138,396.48, 207,124.02 and 85,060.41 is: 127,301.32
Step by Step Solution
- Step 1: Write the proportion equation
138,396.48 : 207,124.02 = 85,060.41 : x - Step 2: Convert to fraction form
138,396.48/207,124.02 = 85,060.41/x - Step 3: Cross multiply
138,396.48x = 207,124.02 × 85,060.41 - Step 4: Simplify right side
138,396.48x = 17,618,054,062.05 - Step 5: Solve for x
x = 17,618,054,062.05/138,396.48 - Step 6: Final answer
x = 127,301.32
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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.