Finding the Fourth Proportional to 119,743.68, 165,230.76 and 68,758.56
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Solution
The fourth proportional to 119,743.68, 165,230.76 and 68,758.56 is: 94,877.90
Step by Step Solution
- Step 1: Write the proportion equation
119,743.68 : 165,230.76 = 68,758.56 : x - Step 2: Convert to fraction form
119,743.68/165,230.76 = 68,758.56/x - Step 3: Cross multiply
119,743.68x = 165,230.76 × 68,758.56 - Step 4: Simplify right side
119,743.68x = 11,361,029,125.31 - Step 5: Solve for x
x = 11,361,029,125.31/119,743.68 - Step 6: Final answer
x = 94,877.90
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.