Finding the Fourth Proportional to 135,008.97, 186,313.83 and 74,581.23
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Solution
The fourth proportional to 135,008.97, 186,313.83 and 74,581.23 is: 102,922.90
Step by Step Solution
- Step 1: Write the proportion equation
135,008.97 : 186,313.83 = 74,581.23 : x - Step 2: Convert to fraction form
135,008.97/186,313.83 = 74,581.23/x - Step 3: Cross multiply
135,008.97x = 186,313.83 × 74,581.23 - Step 4: Simplify right side
135,008.97x = 13,895,514,607.41 - Step 5: Solve for x
x = 13,895,514,607.41/135,008.97 - Step 6: Final answer
x = 102,922.90
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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.