Finding the Fourth Proportional to 129,283.29, 193,523.99 and 69,971.85
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Solution
The fourth proportional to 129,283.29, 193,523.99 and 69,971.85 is: 104,740.77
Step by Step Solution
- Step 1: Write the proportion equation
129,283.29 : 193,523.99 = 69,971.85 : x - Step 2: Convert to fraction form
129,283.29/193,523.99 = 69,971.85/x - Step 3: Cross multiply
129,283.29x = 193,523.99 × 69,971.85 - Step 4: Simplify right side
129,283.29x = 13,541,231,249.82 - Step 5: Solve for x
x = 13,541,231,249.82/129,283.29 - Step 6: Final answer
x = 104,740.77
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.