Finding the Fourth Proportional to 155,965.64, 234,052.28 and 84,906.21
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Solution
The fourth proportional to 155,965.64, 234,052.28 and 84,906.21 is: 127,415.83
Step by Step Solution
- Step 1: Write the proportion equation
155,965.64 : 234,052.28 = 84,906.21 : x - Step 2: Convert to fraction form
155,965.64/234,052.28 = 84,906.21/x - Step 3: Cross multiply
155,965.64x = 234,052.28 × 84,906.21 - Step 4: Simplify right side
155,965.64x = 19,872,491,612.13 - Step 5: Solve for x
x = 19,872,491,612.13/155,965.64 - Step 6: Final answer
x = 127,415.83
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.