Finding the Fourth Proportional to 159,506.96, 239,063.40 and 80,643.68
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Solution
The fourth proportional to 159,506.96, 239,063.40 and 80,643.68 is: 120,865.90
Step by Step Solution
- Step 1: Write the proportion equation
159,506.96 : 239,063.40 = 80,643.68 : x - Step 2: Convert to fraction form
159,506.96/239,063.40 = 80,643.68/x - Step 3: Cross multiply
159,506.96x = 239,063.40 × 80,643.68 - Step 4: Simplify right side
159,506.96x = 19,278,952,329.31 - Step 5: Solve for x
x = 19,278,952,329.31/159,506.96 - Step 6: Final answer
x = 120,865.90
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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.