Finding the Fourth Proportional to 125,890.36, 189,021.66 and 84,031.24
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Solution
The fourth proportional to 125,890.36, 189,021.66 and 84,031.24 is: 126,171.09
Step by Step Solution
- Step 1: Write the proportion equation
125,890.36 : 189,021.66 = 84,031.24 : x - Step 2: Convert to fraction form
125,890.36/189,021.66 = 84,031.24/x - Step 3: Cross multiply
125,890.36x = 189,021.66 × 84,031.24 - Step 4: Simplify right side
125,890.36x = 15,883,724,476.66 - Step 5: Solve for x
x = 15,883,724,476.66/125,890.36 - Step 6: Final answer
x = 126,171.09
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.