Finding the Fourth Proportional to 106,073.23, 146,344.63 and 65,772.49
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Solution
The fourth proportional to 106,073.23, 146,344.63 and 65,772.49 is: 90,743.45
Step by Step Solution
- Step 1: Write the proportion equation
106,073.23 : 146,344.63 = 65,772.49 : x - Step 2: Convert to fraction form
106,073.23/146,344.63 = 65,772.49/x - Step 3: Cross multiply
106,073.23x = 146,344.63 × 65,772.49 - Step 4: Simplify right side
106,073.23x = 9,625,450,713.23 - Step 5: Solve for x
x = 9,625,450,713.23/106,073.23 - Step 6: Final answer
x = 90,743.45
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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.