Finding the Fourth Proportional to 129,417.94, 194,028.09 and 40,620.07
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Solution
The fourth proportional to 129,417.94, 194,028.09 and 40,620.07 is: 60,899.09
Step by Step Solution
- Step 1: Write the proportion equation
129,417.94 : 194,028.09 = 40,620.07 : x - Step 2: Convert to fraction form
129,417.94/194,028.09 = 40,620.07/x - Step 3: Cross multiply
129,417.94x = 194,028.09 × 40,620.07 - Step 4: Simplify right side
129,417.94x = 7,881,434,597.77 - Step 5: Solve for x
x = 7,881,434,597.77/129,417.94 - Step 6: Final answer
x = 60,899.09
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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.