Finding the Fourth Proportional to 137,579.49, 206,427.74 and 75,177.09
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Solution
The fourth proportional to 137,579.49, 206,427.74 and 75,177.09 is: 112,797.60
Step by Step Solution
- Step 1: Write the proportion equation
137,579.49 : 206,427.74 = 75,177.09 : x - Step 2: Convert to fraction form
137,579.49/206,427.74 = 75,177.09/x - Step 3: Cross multiply
137,579.49x = 206,427.74 × 75,177.09 - Step 4: Simplify right side
137,579.49x = 15,518,636,412.59 - Step 5: Solve for x
x = 15,518,636,412.59/137,579.49 - Step 6: Final answer
x = 112,797.60
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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.