Finding the Fourth Proportional to 138,766.62, 191,367.93 and 92,116.95
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Solution
The fourth proportional to 138,766.62, 191,367.93 and 92,116.95 is: 127,035.09
Step by Step Solution
- Step 1: Write the proportion equation
138,766.62 : 191,367.93 = 92,116.95 : x - Step 2: Convert to fraction form
138,766.62/191,367.93 = 92,116.95/x - Step 3: Cross multiply
138,766.62x = 191,367.93 × 92,116.95 - Step 4: Simplify right side
138,766.62x = 17,628,230,039.41 - Step 5: Solve for x
x = 17,628,230,039.41/138,766.62 - Step 6: Final answer
x = 127,035.09
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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.