Finding the Fourth Proportional to 113,756.14, 170,284.20 and 74,228.14
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Solution
The fourth proportional to 113,756.14, 170,284.20 and 74,228.14 is: 111,113.82
Step by Step Solution
- Step 1: Write the proportion equation
113,756.14 : 170,284.20 = 74,228.14 : x - Step 2: Convert to fraction form
113,756.14/170,284.20 = 74,228.14/x - Step 3: Cross multiply
113,756.14x = 170,284.20 × 74,228.14 - Step 4: Simplify right side
113,756.14x = 12,639,879,437.39 - Step 5: Solve for x
x = 12,639,879,437.39/113,756.14 - Step 6: Final answer
x = 111,113.82
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1.5x scale
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.