Finding the Fourth Proportional to 139,528.84, 192,549.36 and 75,866.80
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Solution
The fourth proportional to 139,528.84, 192,549.36 and 75,866.80 is: 104,695.95
Step by Step Solution
- Step 1: Write the proportion equation
139,528.84 : 192,549.36 = 75,866.80 : x - Step 2: Convert to fraction form
139,528.84/192,549.36 = 75,866.80/x - Step 3: Cross multiply
139,528.84x = 192,549.36 × 75,866.80 - Step 4: Simplify right side
139,528.84x = 14,608,103,785.25 - Step 5: Solve for x
x = 14,608,103,785.25/139,528.84 - Step 6: Final answer
x = 104,695.95
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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.