Finding the Fourth Proportional to 138,562.08, 207,791.84 and 49,791.68
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Solution
The fourth proportional to 138,562.08, 207,791.84 and 49,791.68 is: 74,669.09
Step by Step Solution
- Step 1: Write the proportion equation
138,562.08 : 207,791.84 = 49,791.68 : x - Step 2: Convert to fraction form
138,562.08/207,791.84 = 49,791.68/x - Step 3: Cross multiply
138,562.08x = 207,791.84 × 49,791.68 - Step 4: Simplify right side
138,562.08x = 10,346,304,803.89 - Step 5: Solve for x
x = 10,346,304,803.89/138,562.08 - Step 6: Final answer
x = 74,669.09
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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.