Finding the Fourth Proportional to 128,657.56, 192,938.64 and 44,395.96
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Solution
The fourth proportional to 128,657.56, 192,938.64 and 44,395.96 is: 66,577.48
Step by Step Solution
- Step 1: Write the proportion equation
128,657.56 : 192,938.64 = 44,395.96 : x - Step 2: Convert to fraction form
128,657.56/192,938.64 = 44,395.96/x - Step 3: Cross multiply
128,657.56x = 192,938.64 × 44,395.96 - Step 4: Simplify right side
128,657.56x = 8,565,696,143.89 - Step 5: Solve for x
x = 8,565,696,143.89/128,657.56 - Step 6: Final answer
x = 66,577.48
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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.