Finding the Fourth Proportional to 131,709.93, 197,365.33 and 87,177.14
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Solution
The fourth proportional to 131,709.93, 197,365.33 and 87,177.14 is: 130,633.62
Step by Step Solution
- Step 1: Write the proportion equation
131,709.93 : 197,365.33 = 87,177.14 : x - Step 2: Convert to fraction form
131,709.93/197,365.33 = 87,177.14/x - Step 3: Cross multiply
131,709.93x = 197,365.33 × 87,177.14 - Step 4: Simplify right side
131,709.93x = 17,205,745,497.97 - Step 5: Solve for x
x = 17,205,745,497.97/131,709.93 - Step 6: Final answer
x = 130,633.62
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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.