Finding the Fourth Proportional to 157,620.79, 236,340.28 and 107,761.31
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Solution
The fourth proportional to 157,620.79, 236,340.28 and 107,761.31 is: 161,579.82
Step by Step Solution
- Step 1: Write the proportion equation
157,620.79 : 236,340.28 = 107,761.31 : x - Step 2: Convert to fraction form
157,620.79/236,340.28 = 107,761.31/x - Step 3: Cross multiply
157,620.79x = 236,340.28 × 107,761.31 - Step 4: Simplify right side
157,620.79x = 25,468,338,178.57 - Step 5: Solve for x
x = 25,468,338,178.57/157,620.79 - Step 6: Final answer
x = 161,579.82
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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.