Finding the Fourth Proportional to 122,286.56, 168,762.48 and 68,588.80
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Solution
The fourth proportional to 122,286.56, 168,762.48 and 68,588.80 is: 94,656.49
Step by Step Solution
- Step 1: Write the proportion equation
122,286.56 : 168,762.48 = 68,588.80 : x - Step 2: Convert to fraction form
122,286.56/168,762.48 = 68,588.80/x - Step 3: Cross multiply
122,286.56x = 168,762.48 × 68,588.80 - Step 4: Simplify right side
122,286.56x = 11,575,215,988.22 - Step 5: Solve for x
x = 11,575,215,988.22/122,286.56 - Step 6: Final answer
x = 94,656.49
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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.