Finding the Fourth Proportional to 117,122.94, 161,629.62 and 63,407.94
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Solution
The fourth proportional to 117,122.94, 161,629.62 and 63,407.94 is: 87,502.94
Step by Step Solution
- Step 1: Write the proportion equation
117,122.94 : 161,629.62 = 63,407.94 : x - Step 2: Convert to fraction form
117,122.94/161,629.62 = 63,407.94/x - Step 3: Cross multiply
117,122.94x = 161,629.62 × 63,407.94 - Step 4: Simplify right side
117,122.94x = 10,248,601,247.18 - Step 5: Solve for x
x = 10,248,601,247.18/117,122.94 - Step 6: Final answer
x = 87,502.94
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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.