Finding the Fourth Proportional to 138,604.04, 191,229.91 and 84,833.00
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Solution
The fourth proportional to 138,604.04, 191,229.91 and 84,833.00 is: 117,042.81
Step by Step Solution
- Step 1: Write the proportion equation
138,604.04 : 191,229.91 = 84,833.00 : x - Step 2: Convert to fraction form
138,604.04/191,229.91 = 84,833.00/x - Step 3: Cross multiply
138,604.04x = 191,229.91 × 84,833.00 - Step 4: Simplify right side
138,604.04x = 16,222,605,574.72 - Step 5: Solve for x
x = 16,222,605,574.72/138,604.04 - Step 6: Final answer
x = 117,042.81
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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.