Finding the Fourth Proportional to 113,812.08, 170,437.32 and 84,891.60
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Solution
The fourth proportional to 113,812.08, 170,437.32 and 84,891.60 is: 127,127.95
Step by Step Solution
- Step 1: Write the proportion equation
113,812.08 : 170,437.32 = 84,891.60 : x - Step 2: Convert to fraction form
113,812.08/170,437.32 = 84,891.60/x - Step 3: Cross multiply
113,812.08x = 170,437.32 × 84,891.60 - Step 4: Simplify right side
113,812.08x = 14,468,696,794.51 - Step 5: Solve for x
x = 14,468,696,794.51/113,812.08 - Step 6: Final answer
x = 127,127.95
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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.