Finding the Fourth Proportional to 135,854.28, 203,715.84 and 56,947.32
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Solution
The fourth proportional to 135,854.28, 203,715.84 and 56,947.32 is: 85,393.49
Step by Step Solution
- Step 1: Write the proportion equation
135,854.28 : 203,715.84 = 56,947.32 : x - Step 2: Convert to fraction form
135,854.28/203,715.84 = 56,947.32/x - Step 3: Cross multiply
135,854.28x = 203,715.84 × 56,947.32 - Step 4: Simplify right side
135,854.28x = 11,601,071,129.55 - Step 5: Solve for x
x = 11,601,071,129.55/135,854.28 - Step 6: Final answer
x = 85,393.49
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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.