Finding the Fourth Proportional to 133,129.44, 199,638.72 and 54,190.08
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Solution
The fourth proportional to 133,129.44, 199,638.72 and 54,190.08 is: 81,262.55
Step by Step Solution
- Step 1: Write the proportion equation
133,129.44 : 199,638.72 = 54,190.08 : x - Step 2: Convert to fraction form
133,129.44/199,638.72 = 54,190.08/x - Step 3: Cross multiply
133,129.44x = 199,638.72 × 54,190.08 - Step 4: Simplify right side
133,129.44x = 10,818,438,207.90 - Step 5: Solve for x
x = 10,818,438,207.90/133,129.44 - Step 6: Final answer
x = 81,262.55
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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.