Finding the Fourth Proportional to 135,202.58, 186,578.47 and 74,775.77
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Solution
The fourth proportional to 135,202.58, 186,578.47 and 74,775.77 is: 103,189.96
Step by Step Solution
- Step 1: Write the proportion equation
135,202.58 : 186,578.47 = 74,775.77 : x - Step 2: Convert to fraction form
135,202.58/186,578.47 = 74,775.77/x - Step 3: Cross multiply
135,202.58x = 186,578.47 × 74,775.77 - Step 4: Simplify right side
135,202.58x = 13,951,548,759.67 - Step 5: Solve for x
x = 13,951,548,759.67/135,202.58 - Step 6: Final answer
x = 103,189.96
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.