Finding the Fourth Proportional to 131,792.19, 197,792.84 and 68,630.28
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Solution
The fourth proportional to 131,792.19, 197,792.84 and 68,630.28 is: 102,999.87
Step by Step Solution
- Step 1: Write the proportion equation
131,792.19 : 197,792.84 = 68,630.28 : x - Step 2: Convert to fraction form
131,792.19/197,792.84 = 68,630.28/x - Step 3: Cross multiply
131,792.19x = 197,792.84 × 68,630.28 - Step 4: Simplify right side
131,792.19x = 13,574,577,991.20 - Step 5: Solve for x
x = 13,574,577,991.20/131,792.19 - Step 6: Final answer
x = 102,999.87
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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.