Finding the Fourth Proportional to 106,623.44, 159,686.40 and 84,286.88
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Solution
The fourth proportional to 106,623.44, 159,686.40 and 84,286.88 is: 126,233.67
Step by Step Solution
- Step 1: Write the proportion equation
106,623.44 : 159,686.40 = 84,286.88 : x - Step 2: Convert to fraction form
106,623.44/159,686.40 = 84,286.88/x - Step 3: Cross multiply
106,623.44x = 159,686.40 × 84,286.88 - Step 4: Simplify right side
106,623.44x = 13,459,468,434.43 - Step 5: Solve for x
x = 13,459,468,434.43/106,623.44 - Step 6: Final answer
x = 126,233.67
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1.5x scale
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.