Finding the Fourth Proportional to 105,496.64, 158,133.68 and 72,207.84
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Solution
The fourth proportional to 105,496.64, 158,133.68 and 72,207.84 is: 108,235.59
Step by Step Solution
- Step 1: Write the proportion equation
105,496.64 : 158,133.68 = 72,207.84 : x - Step 2: Convert to fraction form
105,496.64/158,133.68 = 72,207.84/x - Step 3: Cross multiply
105,496.64x = 158,133.68 × 72,207.84 - Step 4: Simplify right side
105,496.64x = 11,418,491,464.05 - Step 5: Solve for x
x = 11,418,491,464.05/105,496.64 - Step 6: Final answer
x = 108,235.59
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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.