Finding the Fourth Proportional to 122,997.60, 169,724.16 and 69,274.08
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Solution
The fourth proportional to 122,997.60, 169,724.16 and 69,274.08 is: 95,591.17
Step by Step Solution
- Step 1: Write the proportion equation
122,997.60 : 169,724.16 = 69,274.08 : x - Step 2: Convert to fraction form
122,997.60/169,724.16 = 69,274.08/x - Step 3: Cross multiply
122,997.60x = 169,724.16 × 69,274.08 - Step 4: Simplify right side
122,997.60x = 11,757,485,037.77 - Step 5: Solve for x
x = 11,757,485,037.77/122,997.60 - Step 6: Final answer
x = 95,591.17
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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.