Finding the Fourth Proportional to 139,357.62, 192,313.58 and 75,696.75
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Solution
The fourth proportional to 139,357.62, 192,313.58 and 75,696.75 is: 104,461.55
Step by Step Solution
- Step 1: Write the proportion equation
139,357.62 : 192,313.58 = 75,696.75 : x - Step 2: Convert to fraction form
139,357.62/192,313.58 = 75,696.75/x - Step 3: Cross multiply
139,357.62x = 192,313.58 × 75,696.75 - Step 4: Simplify right side
139,357.62x = 14,557,512,608.38 - Step 5: Solve for x
x = 14,557,512,608.38/139,357.62 - Step 6: Final answer
x = 104,461.55
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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.