Finding the Fourth Proportional to 107,213.50, 147,857.77 and 66,930.99
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Solution
The fourth proportional to 107,213.50, 147,857.77 and 66,930.99 is: 92,304.29
Step by Step Solution
- Step 1: Write the proportion equation
107,213.50 : 147,857.77 = 66,930.99 : x - Step 2: Convert to fraction form
107,213.50/147,857.77 = 66,930.99/x - Step 3: Cross multiply
107,213.50x = 147,857.77 × 66,930.99 - Step 4: Simplify right side
107,213.50x = 9,896,265,851.35 - Step 5: Solve for x
x = 9,896,265,851.35/107,213.50 - Step 6: Final answer
x = 92,304.29
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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.