Finding the Fourth Proportional to 134,669.82, 185,845.66 and 74,242.68
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Solution
The fourth proportional to 134,669.82, 185,845.66 and 74,242.68 is: 102,455.61
Step by Step Solution
- Step 1: Write the proportion equation
134,669.82 : 185,845.66 = 74,242.68 : x - Step 2: Convert to fraction form
134,669.82/185,845.66 = 74,242.68/x - Step 3: Cross multiply
134,669.82x = 185,845.66 × 74,242.68 - Step 4: Simplify right side
134,669.82x = 13,797,678,982.24 - Step 5: Solve for x
x = 13,797,678,982.24/134,669.82 - Step 6: Final answer
x = 102,455.61
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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.