Finding the Fourth Proportional to 159,331.68, 239,145.21 and 80,501.31
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Solution
The fourth proportional to 159,331.68, 239,145.21 and 80,501.31 is: 120,826.58
Step by Step Solution
- Step 1: Write the proportion equation
159,331.68 : 239,145.21 = 80,501.31 : x - Step 2: Convert to fraction form
159,331.68/239,145.21 = 80,501.31/x - Step 3: Cross multiply
159,331.68x = 239,145.21 × 80,501.31 - Step 4: Simplify right side
159,331.68x = 19,251,502,685.23 - Step 5: Solve for x
x = 19,251,502,685.23/159,331.68 - Step 6: Final answer
x = 120,826.58
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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.