Finding the Fourth Proportional to 133,296.08, 199,845.34 and 80,693.12
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Solution
The fourth proportional to 133,296.08, 199,845.34 and 80,693.12 is: 120,979.88
Step by Step Solution
- Step 1: Write the proportion equation
133,296.08 : 199,845.34 = 80,693.12 : x - Step 2: Convert to fraction form
133,296.08/199,845.34 = 80,693.12/x - Step 3: Cross multiply
133,296.08x = 199,845.34 × 80,693.12 - Step 4: Simplify right side
133,296.08x = 16,126,144,002.06 - Step 5: Solve for x
x = 16,126,144,002.06/133,296.08 - Step 6: Final answer
x = 120,979.88
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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.