Finding the Fourth Proportional to 107,062.55, 147,815.64 and 68,839.26
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Solution
The fourth proportional to 107,062.55, 147,815.64 and 68,839.26 is: 95,042.75
Step by Step Solution
- Step 1: Write the proportion equation
107,062.55 : 147,815.64 = 68,839.26 : x - Step 2: Convert to fraction form
107,062.55/147,815.64 = 68,839.26/x - Step 3: Cross multiply
107,062.55x = 147,815.64 × 68,839.26 - Step 4: Simplify right side
107,062.55x = 10,175,519,274.03 - Step 5: Solve for x
x = 10,175,519,274.03/107,062.55 - Step 6: Final answer
x = 95,042.75
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.