Finding the Fourth Proportional to 156,144.24, 215,479.44 and 84,525.12
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Solution
The fourth proportional to 156,144.24, 215,479.44 and 84,525.12 is: 116,644.88
Step by Step Solution
- Step 1: Write the proportion equation
156,144.24 : 215,479.44 = 84,525.12 : x - Step 2: Convert to fraction form
156,144.24/215,479.44 = 84,525.12/x - Step 3: Cross multiply
156,144.24x = 215,479.44 × 84,525.12 - Step 4: Simplify right side
156,144.24x = 18,213,425,523.53 - Step 5: Solve for x
x = 18,213,425,523.53/156,144.24 - Step 6: Final answer
x = 116,644.88
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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.