Finding the Fourth Proportional to 122,717.22, 169,433.64 and 93,986.12
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Solution
The fourth proportional to 122,717.22, 169,433.64 and 93,986.12 is: 129,765.08
Step by Step Solution
- Step 1: Write the proportion equation
122,717.22 : 169,433.64 = 93,986.12 : x - Step 2: Convert to fraction form
122,717.22/169,433.64 = 93,986.12/x - Step 3: Cross multiply
122,717.22x = 169,433.64 × 93,986.12 - Step 4: Simplify right side
122,717.22x = 15,924,410,421.08 - Step 5: Solve for x
x = 15,924,410,421.08/122,717.22 - Step 6: Final answer
x = 129,765.08
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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.