Finding the Fourth Proportional to 129,620.20, 194,430.30 and 110,593.30
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Solution
The fourth proportional to 129,620.20, 194,430.30 and 110,593.30 is: 165,889.95
Step by Step Solution
- Step 1: Write the proportion equation
129,620.20 : 194,430.30 = 110,593.30 : x - Step 2: Convert to fraction form
129,620.20/194,430.30 = 110,593.30/x - Step 3: Cross multiply
129,620.20x = 194,430.30 × 110,593.30 - Step 4: Simplify right side
129,620.20x = 21,502,688,496.99 - Step 5: Solve for x
x = 21,502,688,496.99/129,620.20 - Step 6: Final answer
x = 165,889.95
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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.