Finding the Fourth Proportional to 107,340.71, 161,022.09 and 28,454.93
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Solution
The fourth proportional to 107,340.71, 161,022.09 and 28,454.93 is: 42,685.32
Step by Step Solution
- Step 1: Write the proportion equation
107,340.71 : 161,022.09 = 28,454.93 : x - Step 2: Convert to fraction form
107,340.71/161,022.09 = 28,454.93/x - Step 3: Cross multiply
107,340.71x = 161,022.09 × 28,454.93 - Step 4: Simplify right side
107,340.71x = 4,581,872,299.40 - Step 5: Solve for x
x = 4,581,872,299.40/107,340.71 - Step 6: Final answer
x = 42,685.32
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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.