Finding the Fourth Proportional to 135,854.64, 203,716.42 and 56,947.68
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Solution
The fourth proportional to 135,854.64, 203,716.42 and 56,947.68 is: 85,394.05
Step by Step Solution
- Step 1: Write the proportion equation
135,854.64 : 203,716.42 = 56,947.68 : x - Step 2: Convert to fraction form
135,854.64/203,716.42 = 56,947.68/x - Step 3: Cross multiply
135,854.64x = 203,716.42 × 56,947.68 - Step 4: Simplify right side
135,854.64x = 11,601,177,354.54 - Step 5: Solve for x
x = 11,601,177,354.54/135,854.64 - Step 6: Final answer
x = 85,394.05
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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.