Finding the Fourth Proportional to 136,956.62, 205,415.80 and 46,997.92
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Solution
The fourth proportional to 136,956.62, 205,415.80 and 46,997.92 is: 70,490.32
Step by Step Solution
- Step 1: Write the proportion equation
136,956.62 : 205,415.80 = 46,997.92 : x - Step 2: Convert to fraction form
136,956.62/205,415.80 = 46,997.92/x - Step 3: Cross multiply
136,956.62x = 205,415.80 × 46,997.92 - Step 4: Simplify right side
136,956.62x = 9,654,115,474.41 - Step 5: Solve for x
x = 9,654,115,474.41/136,956.62 - Step 6: Final answer
x = 70,490.32
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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.