Finding the Fourth Proportional to 135,107.83, 202,702.76 and 71,917.20
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Solution
The fourth proportional to 135,107.83, 202,702.76 and 71,917.20 is: 107,897.63
Step by Step Solution
- Step 1: Write the proportion equation
135,107.83 : 202,702.76 = 71,917.20 : x - Step 2: Convert to fraction form
135,107.83/202,702.76 = 71,917.20/x - Step 3: Cross multiply
135,107.83x = 202,702.76 × 71,917.20 - Step 4: Simplify right side
135,107.83x = 14,577,814,931.47 - Step 5: Solve for x
x = 14,577,814,931.47/135,107.83 - Step 6: Final answer
x = 107,897.63
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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.