Finding the Fourth Proportional to 121,919.88, 168,242.64 and 68,194.50
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Solution
The fourth proportional to 121,919.88, 168,242.64 and 68,194.50 is: 94,104.61
Step by Step Solution
- Step 1: Write the proportion equation
121,919.88 : 168,242.64 = 68,194.50 : x - Step 2: Convert to fraction form
121,919.88/168,242.64 = 68,194.50/x - Step 3: Cross multiply
121,919.88x = 168,242.64 × 68,194.50 - Step 4: Simplify right side
121,919.88x = 11,473,222,713.48 - Step 5: Solve for x
x = 11,473,222,713.48/121,919.88 - Step 6: Final answer
x = 94,104.61
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.