Finding the Fourth Proportional to 122,372.88, 168,873.48 and 68,656.74
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Solution
The fourth proportional to 122,372.88, 168,873.48 and 68,656.74 is: 94,745.69
Step by Step Solution
- Step 1: Write the proportion equation
122,372.88 : 168,873.48 = 68,656.74 : x - Step 2: Convert to fraction form
122,372.88/168,873.48 = 68,656.74/x - Step 3: Cross multiply
122,372.88x = 168,873.48 × 68,656.74 - Step 4: Simplify right side
122,372.88x = 11,594,302,609.26 - Step 5: Solve for x
x = 11,594,302,609.26/122,372.88 - Step 6: Final answer
x = 94,745.69
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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.