Finding the Fourth Proportional to 129,125.74, 193,699.77 and 35,631.49
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Solution
The fourth proportional to 129,125.74, 193,699.77 and 35,631.49 is: 53,450.31
Step by Step Solution
- Step 1: Write the proportion equation
129,125.74 : 193,699.77 = 35,631.49 : x - Step 2: Convert to fraction form
129,125.74/193,699.77 = 35,631.49/x - Step 3: Cross multiply
129,125.74x = 193,699.77 × 35,631.49 - Step 4: Simplify right side
129,125.74x = 6,901,811,417.76 - Step 5: Solve for x
x = 6,901,811,417.76/129,125.74 - Step 6: Final answer
x = 53,450.31
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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.