Finding the Fourth Proportional to 135,896.20, 187,533.18 and 75,464.92
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Solution
The fourth proportional to 135,896.20, 187,533.18 and 75,464.92 is: 104,139.60
Step by Step Solution
- Step 1: Write the proportion equation
135,896.20 : 187,533.18 = 75,464.92 : x - Step 2: Convert to fraction form
135,896.20/187,533.18 = 75,464.92/x - Step 3: Cross multiply
135,896.20x = 187,533.18 × 75,464.92 - Step 4: Simplify right side
135,896.20x = 14,152,176,426.05 - Step 5: Solve for x
x = 14,152,176,426.05/135,896.20 - Step 6: Final answer
x = 104,139.60
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.