Finding the Fourth Proportional to 106,964.40, 147,609.84 and 59,219.76
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Solution
The fourth proportional to 106,964.40, 147,609.84 and 59,219.76 is: 81,722.70
Step by Step Solution
- Step 1: Write the proportion equation
106,964.40 : 147,609.84 = 59,219.76 : x - Step 2: Convert to fraction form
106,964.40/147,609.84 = 59,219.76/x - Step 3: Cross multiply
106,964.40x = 147,609.84 × 59,219.76 - Step 4: Simplify right side
106,964.40x = 8,741,419,298.44 - Step 5: Solve for x
x = 8,741,419,298.44/106,964.40 - Step 6: Final answer
x = 81,722.70
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1.5x scale
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.