Finding the Fourth Proportional to 157,278.68, 235,684.66 and 115,521.56
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Solution
The fourth proportional to 157,278.68, 235,684.66 and 115,521.56 is: 173,110.94
Step by Step Solution
- Step 1: Write the proportion equation
157,278.68 : 235,684.66 = 115,521.56 : x - Step 2: Convert to fraction form
157,278.68/235,684.66 = 115,521.56/x - Step 3: Cross multiply
157,278.68x = 235,684.66 × 115,521.56 - Step 4: Simplify right side
157,278.68x = 27,226,659,591.27 - Step 5: Solve for x
x = 27,226,659,591.27/157,278.68 - Step 6: Final answer
x = 173,110.94
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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.