Finding the Fourth Proportional to 156,284.24, 215,672.81 and 84,664.08
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Solution
The fourth proportional to 156,284.24, 215,672.81 and 84,664.08 is: 116,836.73
Step by Step Solution
- Step 1: Write the proportion equation
156,284.24 : 215,672.81 = 84,664.08 : x - Step 2: Convert to fraction form
156,284.24/215,672.81 = 84,664.08/x - Step 3: Cross multiply
156,284.24x = 215,672.81 × 84,664.08 - Step 4: Simplify right side
156,284.24x = 18,259,739,616.34 - Step 5: Solve for x
x = 18,259,739,616.34/156,284.24 - Step 6: Final answer
x = 116,836.73
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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.