Finding the Fourth Proportional to 122,605.52, 183,868.12 and 39,480.08
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Solution
The fourth proportional to 122,605.52, 183,868.12 and 39,480.08 is: 59,207.19
Step by Step Solution
- Step 1: Write the proportion equation
122,605.52 : 183,868.12 = 39,480.08 : x - Step 2: Convert to fraction form
122,605.52/183,868.12 = 39,480.08/x - Step 3: Cross multiply
122,605.52x = 183,868.12 × 39,480.08 - Step 4: Simplify right side
122,605.52x = 7,259,128,087.05 - Step 5: Solve for x
x = 7,259,128,087.05/122,605.52 - Step 6: Final answer
x = 59,207.19
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.