Finding the Fourth Proportional to 126,315.24, 189,531.18 and 56,240.52
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Solution
The fourth proportional to 126,315.24, 189,531.18 and 56,240.52 is: 84,386.75
Step by Step Solution
- Step 1: Write the proportion equation
126,315.24 : 189,531.18 = 56,240.52 : x - Step 2: Convert to fraction form
126,315.24/189,531.18 = 56,240.52/x - Step 3: Cross multiply
126,315.24x = 189,531.18 × 56,240.52 - Step 4: Simplify right side
126,315.24x = 10,659,332,119.41 - Step 5: Solve for x
x = 10,659,332,119.41/126,315.24 - Step 6: Final answer
x = 84,386.75
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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.