Finding the Fourth Proportional to 124,416.27, 171,640.26 and 79,069.95
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Solution
The fourth proportional to 124,416.27, 171,640.26 and 79,069.95 is: 109,082.09
Step by Step Solution
- Step 1: Write the proportion equation
124,416.27 : 171,640.26 = 79,069.95 : x - Step 2: Convert to fraction form
124,416.27/171,640.26 = 79,069.95/x - Step 3: Cross multiply
124,416.27x = 171,640.26 × 79,069.95 - Step 4: Simplify right side
124,416.27x = 13,571,586,776.19 - Step 5: Solve for x
x = 13,571,586,776.19/124,416.27 - Step 6: Final answer
x = 109,082.09
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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.