Finding the Fourth Proportional to 139,497.84, 192,409.56 and 91,735.92
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Solution
The fourth proportional to 139,497.84, 192,409.56 and 91,735.92 is: 126,531.48
Step by Step Solution
- Step 1: Write the proportion equation
139,497.84 : 192,409.56 = 91,735.92 : x - Step 2: Convert to fraction form
139,497.84/192,409.56 = 91,735.92/x - Step 3: Cross multiply
139,497.84x = 192,409.56 × 91,735.92 - Step 4: Simplify right side
139,497.84x = 17,650,868,003.40 - Step 5: Solve for x
x = 17,650,868,003.40/139,497.84 - Step 6: Final answer
x = 126,531.48
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1.5x scale
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.