Finding the Fourth Proportional to 99,234.97, 136,914.09 and 56,207.63
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Solution
The fourth proportional to 99,234.97, 136,914.09 and 56,207.63 is: 77,549.44
Step by Step Solution
- Step 1: Write the proportion equation
99,234.97 : 136,914.09 = 56,207.63 : x - Step 2: Convert to fraction form
99,234.97/136,914.09 = 56,207.63/x - Step 3: Cross multiply
99,234.97x = 136,914.09 × 56,207.63 - Step 4: Simplify right side
99,234.97x = 7,695,615,827.94 - Step 5: Solve for x
x = 7,695,615,827.94/99,234.97 - Step 6: Final answer
x = 77,549.44
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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.