Finding the Fourth Proportional to 139,680.96, 192,734.20 and 91,270.08
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Solution
The fourth proportional to 139,680.96, 192,734.20 and 91,270.08 is: 125,936.03
Step by Step Solution
- Step 1: Write the proportion equation
139,680.96 : 192,734.20 = 91,270.08 : x - Step 2: Convert to fraction form
139,680.96/192,734.20 = 91,270.08/x - Step 3: Cross multiply
139,680.96x = 192,734.20 × 91,270.08 - Step 4: Simplify right side
139,680.96x = 17,590,865,852.74 - Step 5: Solve for x
x = 17,590,865,852.74/139,680.96 - Step 6: Final answer
x = 125,936.03
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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.