Finding the Fourth Proportional to 118,914.75, 164,102.36 and 68,613.75
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Solution
The fourth proportional to 118,914.75, 164,102.36 and 68,613.75 is: 94,686.98
Step by Step Solution
- Step 1: Write the proportion equation
118,914.75 : 164,102.36 = 68,613.75 : x - Step 2: Convert to fraction form
118,914.75/164,102.36 = 68,613.75/x - Step 3: Cross multiply
118,914.75x = 164,102.36 × 68,613.75 - Step 4: Simplify right side
118,914.75x = 11,259,678,303.45 - Step 5: Solve for x
x = 11,259,678,303.45/118,914.75 - Step 6: Final answer
x = 94,686.98
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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.