Finding the Fourth Proportional to 129,412.78, 194,119.16 and 59,292.08
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Solution
The fourth proportional to 129,412.78, 194,119.16 and 59,292.08 is: 88,938.12
Step by Step Solution
- Step 1: Write the proportion equation
129,412.78 : 194,119.16 = 59,292.08 : x - Step 2: Convert to fraction form
129,412.78/194,119.16 = 59,292.08/x - Step 3: Cross multiply
129,412.78x = 194,119.16 × 59,292.08 - Step 4: Simplify right side
129,412.78x = 11,509,728,764.25 - Step 5: Solve for x
x = 11,509,728,764.25/129,412.78 - Step 6: Final answer
x = 88,938.12
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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.