Finding the Fourth Proportional to 121,736.63, 167,985.62 and 68,014.19
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Solution
The fourth proportional to 121,736.63, 167,985.62 and 68,014.19 is: 93,853.48
Step by Step Solution
- Step 1: Write the proportion equation
121,736.63 : 167,985.62 = 68,014.19 : x - Step 2: Convert to fraction form
121,736.63/167,985.62 = 68,014.19/x - Step 3: Cross multiply
121,736.63x = 167,985.62 × 68,014.19 - Step 4: Simplify right side
121,736.63x = 11,425,405,875.95 - Step 5: Solve for x
x = 11,425,405,875.95/121,736.63 - Step 6: Final answer
x = 93,853.48
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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.