Finding the Fourth Proportional to 147,841.56, 203,781.69 and 115,519.68
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Solution
The fourth proportional to 147,841.56, 203,781.69 and 115,519.68 is: 159,229.89
Step by Step Solution
- Step 1: Write the proportion equation
147,841.56 : 203,781.69 = 115,519.68 : x - Step 2: Convert to fraction form
147,841.56/203,781.69 = 115,519.68/x - Step 3: Cross multiply
147,841.56x = 203,781.69 × 115,519.68 - Step 4: Simplify right side
147,841.56x = 23,540,795,618.66 - Step 5: Solve for x
x = 23,540,795,618.66/147,841.56 - Step 6: Final answer
x = 159,229.89
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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.