Finding the Fourth Proportional to 135,067.64, 202,660.86 and 71,872.88
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Solution
The fourth proportional to 135,067.64, 202,660.86 and 71,872.88 is: 107,840.93
Step by Step Solution
- Step 1: Write the proportion equation
135,067.64 : 202,660.86 = 71,872.88 : x - Step 2: Convert to fraction form
135,067.64/202,660.86 = 71,872.88/x - Step 3: Cross multiply
135,067.64x = 202,660.86 × 71,872.88 - Step 4: Simplify right side
135,067.64x = 14,565,819,671.48 - Step 5: Solve for x
x = 14,565,819,671.48/135,067.64 - Step 6: Final answer
x = 107,840.93
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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.