Finding the Fourth Proportional to 138,894.52, 191,641.26 and 82,296.12
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Solution
The fourth proportional to 138,894.52, 191,641.26 and 82,296.12 is: 113,548.99
Step by Step Solution
- Step 1: Write the proportion equation
138,894.52 : 191,641.26 = 82,296.12 : x - Step 2: Convert to fraction form
138,894.52/191,641.26 = 82,296.12/x - Step 3: Cross multiply
138,894.52x = 191,641.26 × 82,296.12 - Step 4: Simplify right side
138,894.52x = 15,771,332,129.91 - Step 5: Solve for x
x = 15,771,332,129.91/138,894.52 - Step 6: Final answer
x = 113,548.99
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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.