Finding the Fourth Proportional to 156,260.36, 215,639.20 and 84,640.21
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Solution
The fourth proportional to 156,260.36, 215,639.20 and 84,640.21 is: 116,803.44
Step by Step Solution
- Step 1: Write the proportion equation
156,260.36 : 215,639.20 = 84,640.21 : x - Step 2: Convert to fraction form
156,260.36/215,639.20 = 84,640.21/x - Step 3: Cross multiply
156,260.36x = 215,639.20 × 84,640.21 - Step 4: Simplify right side
156,260.36x = 18,251,747,172.23 - Step 5: Solve for x
x = 18,251,747,172.23/156,260.36 - Step 6: Final answer
x = 116,803.44
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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.