Finding the Fourth Proportional to 99,491.86, 137,261.14 and 63,676.09
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Solution
The fourth proportional to 99,491.86, 137,261.14 and 63,676.09 is: 87,848.92
Step by Step Solution
- Step 1: Write the proportion equation
99,491.86 : 137,261.14 = 63,676.09 : x - Step 2: Convert to fraction form
99,491.86/137,261.14 = 63,676.09/x - Step 3: Cross multiply
99,491.86x = 137,261.14 × 63,676.09 - Step 4: Simplify right side
99,491.86x = 8,740,252,704.14 - Step 5: Solve for x
x = 8,740,252,704.14/99,491.86 - Step 6: Final answer
x = 87,848.92
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.