Finding the Fourth Proportional to 113,552.08, 170,415.60 and 91,419.68
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Solution
The fourth proportional to 113,552.08, 170,415.60 and 91,419.68 is: 137,199.95
Step by Step Solution
- Step 1: Write the proportion equation
113,552.08 : 170,415.60 = 91,419.68 : x - Step 2: Convert to fraction form
113,552.08/170,415.60 = 91,419.68/x - Step 3: Cross multiply
113,552.08x = 170,415.60 × 91,419.68 - Step 4: Simplify right side
113,552.08x = 15,579,339,619.01 - Step 5: Solve for x
x = 15,579,339,619.01/113,552.08 - Step 6: Final answer
x = 137,199.95
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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.