Finding the Fourth Proportional to 107,128.95, 160,713.73 and 43,091.99
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Solution
The fourth proportional to 107,128.95, 160,713.73 and 43,091.99 is: 64,646.15
Step by Step Solution
- Step 1: Write the proportion equation
107,128.95 : 160,713.73 = 43,091.99 : x - Step 2: Convert to fraction form
107,128.95/160,713.73 = 43,091.99/x - Step 3: Cross multiply
107,128.95x = 160,713.73 × 43,091.99 - Step 4: Simplify right side
107,128.95x = 6,925,474,446.02 - Step 5: Solve for x
x = 6,925,474,446.02/107,128.95 - Step 6: Final answer
x = 64,646.15
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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.