Finding the Fourth Proportional to 156,205.19, 215,562.85 and 84,584.99
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Solution
The fourth proportional to 156,205.19, 215,562.85 and 84,584.99 is: 116,727.11
Step by Step Solution
- Step 1: Write the proportion equation
156,205.19 : 215,562.85 = 84,584.99 : x - Step 2: Convert to fraction form
156,205.19/215,562.85 = 84,584.99/x - Step 3: Cross multiply
156,205.19x = 215,562.85 × 84,584.99 - Step 4: Simplify right side
156,205.19x = 18,233,380,222.34 - Step 5: Solve for x
x = 18,233,380,222.34/156,205.19 - Step 6: Final answer
x = 116,727.11
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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.