Finding the Fourth Proportional to 134,953.80, 202,106.70 and 72,486.60
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Solution
The fourth proportional to 134,953.80, 202,106.70 and 72,486.60 is: 108,555.87
Step by Step Solution
- Step 1: Write the proportion equation
134,953.80 : 202,106.70 = 72,486.60 : x - Step 2: Convert to fraction form
134,953.80/202,106.70 = 72,486.60/x - Step 3: Cross multiply
134,953.80x = 202,106.70 × 72,486.60 - Step 4: Simplify right side
134,953.80x = 14,650,027,520.22 - Step 5: Solve for x
x = 14,650,027,520.22/134,953.80 - Step 6: Final answer
x = 108,555.87
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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.