Finding the Fourth Proportional to 135,910.88, 203,773.28 and 69,221.92
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Solution
The fourth proportional to 135,910.88, 203,773.28 and 69,221.92 is: 103,785.49
Step by Step Solution
- Step 1: Write the proportion equation
135,910.88 : 203,773.28 = 69,221.92 : x - Step 2: Convert to fraction form
135,910.88/203,773.28 = 69,221.92/x - Step 3: Cross multiply
135,910.88x = 203,773.28 × 69,221.92 - Step 4: Simplify right side
135,910.88x = 14,105,577,686.30 - Step 5: Solve for x
x = 14,105,577,686.30/135,910.88 - Step 6: Final answer
x = 103,785.49
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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.