Finding the Fourth Proportional to 119,134.20, 178,652.70 and 40,207.80
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Solution
The fourth proportional to 119,134.20, 178,652.70 and 40,207.80 is: 60,295.30
Step by Step Solution
- Step 1: Write the proportion equation
119,134.20 : 178,652.70 = 40,207.80 : x - Step 2: Convert to fraction form
119,134.20/178,652.70 = 40,207.80/x - Step 3: Cross multiply
119,134.20x = 178,652.70 × 40,207.80 - Step 4: Simplify right side
119,134.20x = 7,183,232,031.06 - Step 5: Solve for x
x = 7,183,232,031.06/119,134.20 - Step 6: Final answer
x = 60,295.30
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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.