Finding the Fourth Proportional to 149,164.62, 205,850.97 and 81,185.28
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Solution
The fourth proportional to 149,164.62, 205,850.97 and 81,185.28 is: 112,037.75
Step by Step Solution
- Step 1: Write the proportion equation
149,164.62 : 205,850.97 = 81,185.28 : x - Step 2: Convert to fraction form
149,164.62/205,850.97 = 81,185.28/x - Step 3: Cross multiply
149,164.62x = 205,850.97 × 81,185.28 - Step 4: Simplify right side
149,164.62x = 16,712,068,637.72 - Step 5: Solve for x
x = 16,712,068,637.72/149,164.62 - Step 6: Final answer
x = 112,037.75
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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.