Finding the Fourth Proportional to 113,997.92, 157,316.80 and 63,696.96
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Solution
The fourth proportional to 113,997.92, 157,316.80 and 63,696.96 is: 87,901.62
Step by Step Solution
- Step 1: Write the proportion equation
113,997.92 : 157,316.80 = 63,696.96 : x - Step 2: Convert to fraction form
113,997.92/157,316.80 = 63,696.96/x - Step 3: Cross multiply
113,997.92x = 157,316.80 × 63,696.96 - Step 4: Simplify right side
113,997.92x = 10,020,601,916.93 - Step 5: Solve for x
x = 10,020,601,916.93/113,997.92 - Step 6: Final answer
x = 87,901.62
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.