Finding the Fourth Proportional to 129,574.62, 194,369.63 and 39,615.11
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Solution
The fourth proportional to 129,574.62, 194,369.63 and 39,615.11 is: 59,425.02
Step by Step Solution
- Step 1: Write the proportion equation
129,574.62 : 194,369.63 = 39,615.11 : x - Step 2: Convert to fraction form
129,574.62/194,369.63 = 39,615.11/x - Step 3: Cross multiply
129,574.62x = 194,369.63 × 39,615.11 - Step 4: Simplify right side
129,574.62x = 7,699,974,652.07 - Step 5: Solve for x
x = 7,699,974,652.07/129,574.62 - Step 6: Final answer
x = 59,425.02
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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.