Finding the Fourth Proportional to 156,033.12, 215,324.49 and 84,412.92
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Solution
The fourth proportional to 156,033.12, 215,324.49 and 84,412.92 is: 116,489.17
Step by Step Solution
- Step 1: Write the proportion equation
156,033.12 : 215,324.49 = 84,412.92 : x - Step 2: Convert to fraction form
156,033.12/215,324.49 = 84,412.92/x - Step 3: Cross multiply
156,033.12x = 215,324.49 × 84,412.92 - Step 4: Simplify right side
156,033.12x = 18,176,168,948.41 - Step 5: Solve for x
x = 18,176,168,948.41/156,033.12 - Step 6: Final answer
x = 116,489.17
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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.