Finding the Fourth Proportional to 138,563.08, 207,793.34 and 49,792.68
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Solution
The fourth proportional to 138,563.08, 207,793.34 and 49,792.68 is: 74,670.59
Step by Step Solution
- Step 1: Write the proportion equation
138,563.08 : 207,793.34 = 49,792.68 : x - Step 2: Convert to fraction form
138,563.08/207,793.34 = 49,792.68/x - Step 3: Cross multiply
138,563.08x = 207,793.34 × 49,792.68 - Step 4: Simplify right side
138,563.08x = 10,346,587,284.75 - Step 5: Solve for x
x = 10,346,587,284.75/138,563.08 - Step 6: Final answer
x = 74,670.59
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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.