Finding the Fourth Proportional to 84,207.95, 125,695.37 and 74,243.69
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Solution
The fourth proportional to 84,207.95, 125,695.37 and 74,243.69 is: 110,821.94
Step by Step Solution
- Step 1: Write the proportion equation
84,207.95 : 125,695.37 = 74,243.69 : x - Step 2: Convert to fraction form
84,207.95/125,695.37 = 74,243.69/x - Step 3: Cross multiply
84,207.95x = 125,695.37 × 74,243.69 - Step 4: Simplify right side
84,207.95x = 9,332,088,084.72 - Step 5: Solve for x
x = 9,332,088,084.72/84,207.95 - Step 6: Final answer
x = 110,821.94
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.