Finding the Fourth Proportional to 117,141.17, 161,533.99 and 100,201.49
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Solution
The fourth proportional to 117,141.17, 161,533.99 and 100,201.49 is: 138,174.70
Step by Step Solution
- Step 1: Write the proportion equation
117,141.17 : 161,533.99 = 100,201.49 : x - Step 2: Convert to fraction form
117,141.17/161,533.99 = 100,201.49/x - Step 3: Cross multiply
117,141.17x = 161,533.99 × 100,201.49 - Step 4: Simplify right side
117,141.17x = 16,185,946,636.98 - Step 5: Solve for x
x = 16,185,946,636.98/117,141.17 - Step 6: Final answer
x = 138,174.70
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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.