Finding the Fourth Proportional to 146,640.81, 202,363.61 and 79,572.81
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Solution
The fourth proportional to 146,640.81, 202,363.61 and 79,572.81 is: 109,810.09
Step by Step Solution
- Step 1: Write the proportion equation
146,640.81 : 202,363.61 = 79,572.81 : x - Step 2: Convert to fraction form
146,640.81/202,363.61 = 79,572.81/x - Step 3: Cross multiply
146,640.81x = 202,363.61 × 79,572.81 - Step 4: Simplify right side
146,640.81x = 16,102,640,691.58 - Step 5: Solve for x
x = 16,102,640,691.58/146,640.81 - Step 6: Final answer
x = 109,810.09
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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.