Finding the Fourth Proportional to 122,675.74, 183,778.98 and 102,812.32
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Solution
The fourth proportional to 122,675.74, 183,778.98 and 102,812.32 is: 154,021.84
Step by Step Solution
- Step 1: Write the proportion equation
122,675.74 : 183,778.98 = 102,812.32 : x - Step 2: Convert to fraction form
122,675.74/183,778.98 = 102,812.32/x - Step 3: Cross multiply
122,675.74x = 183,778.98 × 102,812.32 - Step 4: Simplify right side
122,675.74x = 18,894,743,301.03 - Step 5: Solve for x
x = 18,894,743,301.03/122,675.74 - Step 6: Final answer
x = 154,021.84
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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.