Finding the Fourth Proportional to 157,115.10, 235,623.69 and 51,908.70
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Solution
The fourth proportional to 157,115.10, 235,623.69 and 51,908.70 is: 77,846.87
Step by Step Solution
- Step 1: Write the proportion equation
157,115.10 : 235,623.69 = 51,908.70 : x - Step 2: Convert to fraction form
157,115.10/235,623.69 = 51,908.70/x - Step 3: Cross multiply
157,115.10x = 235,623.69 × 51,908.70 - Step 4: Simplify right side
157,115.10x = 12,230,919,437.10 - Step 5: Solve for x
x = 12,230,919,437.10/157,115.10 - Step 6: Final answer
x = 77,846.87
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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.