Finding the Fourth Proportional to 116,840.99, 161,240.58 and 63,126.02
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Solution
The fourth proportional to 116,840.99, 161,240.58 and 63,126.02 is: 87,113.92
Step by Step Solution
- Step 1: Write the proportion equation
116,840.99 : 161,240.58 = 63,126.02 : x - Step 2: Convert to fraction form
116,840.99/161,240.58 = 63,126.02/x - Step 3: Cross multiply
116,840.99x = 161,240.58 × 63,126.02 - Step 4: Simplify right side
116,840.99x = 10,178,476,480.99 - Step 5: Solve for x
x = 10,178,476,480.99/116,840.99 - Step 6: Final answer
x = 87,113.92
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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.