Finding the Fourth Proportional to 156,163.16, 215,506.86 and 84,544.70
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Solution
The fourth proportional to 156,163.16, 215,506.86 and 84,544.70 is: 116,672.61
Step by Step Solution
- Step 1: Write the proportion equation
156,163.16 : 215,506.86 = 84,544.70 : x - Step 2: Convert to fraction form
156,163.16/215,506.86 = 84,544.70/x - Step 3: Cross multiply
156,163.16x = 215,506.86 × 84,544.70 - Step 4: Simplify right side
156,163.16x = 18,219,962,826.64 - Step 5: Solve for x
x = 18,219,962,826.64/156,163.16 - Step 6: Final answer
x = 116,672.61
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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.