Finding the Fourth Proportional to 107,832.20, 161,748.30 and 99,537.80
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Solution
The fourth proportional to 107,832.20, 161,748.30 and 99,537.80 is: 149,306.70
Step by Step Solution
- Step 1: Write the proportion equation
107,832.20 : 161,748.30 = 99,537.80 : x - Step 2: Convert to fraction form
107,832.20/161,748.30 = 99,537.80/x - Step 3: Cross multiply
107,832.20x = 161,748.30 × 99,537.80 - Step 4: Simplify right side
107,832.20x = 16,100,069,935.74 - Step 5: Solve for x
x = 16,100,069,935.74/107,832.20 - Step 6: Final answer
x = 149,306.70
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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.