Finding the Fourth Proportional to 122,690.72, 169,313.00 and 68,975.84
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Solution
The fourth proportional to 122,690.72, 169,313.00 and 68,975.84 is: 95,186.54
Step by Step Solution
- Step 1: Write the proportion equation
122,690.72 : 169,313.00 = 68,975.84 : x - Step 2: Convert to fraction form
122,690.72/169,313.00 = 68,975.84/x - Step 3: Cross multiply
122,690.72x = 169,313.00 × 68,975.84 - Step 4: Simplify right side
122,690.72x = 11,678,505,206.48 - Step 5: Solve for x
x = 11,678,505,206.48/122,690.72 - Step 6: Final answer
x = 95,186.54
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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.