Finding the Fourth Proportional to 131,663.36, 197,446.08 and 47,400.68
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Solution
The fourth proportional to 131,663.36, 197,446.08 and 47,400.68 is: 71,083.39
Step by Step Solution
- Step 1: Write the proportion equation
131,663.36 : 197,446.08 = 47,400.68 : x - Step 2: Convert to fraction form
131,663.36/197,446.08 = 47,400.68/x - Step 3: Cross multiply
131,663.36x = 197,446.08 × 47,400.68 - Step 4: Simplify right side
131,663.36x = 9,359,078,455.33 - Step 5: Solve for x
x = 9,359,078,455.33/131,663.36 - Step 6: Final answer
x = 71,083.39
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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.