Finding the Fourth Proportional to 135,819.04, 187,421.19 and 82,133.66
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Solution
The fourth proportional to 135,819.04, 187,421.19 and 82,133.66 is: 113,338.96
Step by Step Solution
- Step 1: Write the proportion equation
135,819.04 : 187,421.19 = 82,133.66 : x - Step 2: Convert to fraction form
135,819.04/187,421.19 = 82,133.66/x - Step 3: Cross multiply
135,819.04x = 187,421.19 × 82,133.66 - Step 4: Simplify right side
135,819.04x = 15,393,588,296.26 - Step 5: Solve for x
x = 15,393,588,296.26/135,819.04 - Step 6: Final answer
x = 113,338.96
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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.