Finding the Fourth Proportional to 139,376.22, 192,369.74 and 91,634.01
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Solution
The fourth proportional to 139,376.22, 192,369.74 and 91,634.01 is: 126,475.02
Step by Step Solution
- Step 1: Write the proportion equation
139,376.22 : 192,369.74 = 91,634.01 : x - Step 2: Convert to fraction form
139,376.22/192,369.74 = 91,634.01/x - Step 3: Cross multiply
139,376.22x = 192,369.74 × 91,634.01 - Step 4: Simplify right side
139,376.22x = 17,627,610,220.69 - Step 5: Solve for x
x = 17,627,610,220.69/139,376.22 - Step 6: Final answer
x = 126,475.02
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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.