Finding the Fourth Proportional to 138,462.13, 207,674.74 and 38,613.96
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Solution
The fourth proportional to 138,462.13, 207,674.74 and 38,613.96 is: 57,915.79
Step by Step Solution
- Step 1: Write the proportion equation
138,462.13 : 207,674.74 = 38,613.96 : x - Step 2: Convert to fraction form
138,462.13/207,674.74 = 38,613.96/x - Step 3: Cross multiply
138,462.13x = 207,674.74 × 38,613.96 - Step 4: Simplify right side
138,462.13x = 8,019,144,043.04 - Step 5: Solve for x
x = 8,019,144,043.04/138,462.13 - Step 6: Final answer
x = 57,915.79
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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.