Finding the Fourth Proportional to 122,623.56, 169,224.50 and 68,918.92
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Solution
The fourth proportional to 122,623.56, 169,224.50 and 68,918.92 is: 95,110.35
Step by Step Solution
- Step 1: Write the proportion equation
122,623.56 : 169,224.50 = 68,918.92 : x - Step 2: Convert to fraction form
122,623.56/169,224.50 = 68,918.92/x - Step 3: Cross multiply
122,623.56x = 169,224.50 × 68,918.92 - Step 4: Simplify right side
122,623.56x = 11,662,769,777.54 - Step 5: Solve for x
x = 11,662,769,777.54/122,623.56 - Step 6: Final answer
x = 95,110.35
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1.5x scale
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.