Finding the Fourth Proportional to 156,240.28, 215,611.52 and 84,620.31
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Solution
The fourth proportional to 156,240.28, 215,611.52 and 84,620.31 is: 116,775.99
Step by Step Solution
- Step 1: Write the proportion equation
156,240.28 : 215,611.52 = 84,620.31 : x - Step 2: Convert to fraction form
156,240.28/215,611.52 = 84,620.31/x - Step 3: Cross multiply
156,240.28x = 215,611.52 × 84,620.31 - Step 4: Simplify right side
156,240.28x = 18,245,113,661.97 - Step 5: Solve for x
x = 18,245,113,661.97/156,240.28 - Step 6: Final answer
x = 116,775.99
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1.5x scale
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.