Finding the Fourth Proportional to 155,760.62, 214,949.44 and 84,140.62
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Solution
The fourth proportional to 155,760.62, 214,949.44 and 84,140.62 is: 116,113.94
Step by Step Solution
- Step 1: Write the proportion equation
155,760.62 : 214,949.44 = 84,140.62 : x - Step 2: Convert to fraction form
155,760.62/214,949.44 = 84,140.62/x - Step 3: Cross multiply
155,760.62x = 214,949.44 × 84,140.62 - Step 4: Simplify right side
155,760.62x = 18,085,979,150.25 - Step 5: Solve for x
x = 18,085,979,150.25/155,760.62 - Step 6: Final answer
x = 116,113.94
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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.