Finding the Fourth Proportional to 156,868.84, 216,481.04 and 85,249.99
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Solution
The fourth proportional to 156,868.84, 216,481.04 and 85,249.99 is: 117,646.10
Step by Step Solution
- Step 1: Write the proportion equation
156,868.84 : 216,481.04 = 85,249.99 : x - Step 2: Convert to fraction form
156,868.84/216,481.04 = 85,249.99/x - Step 3: Cross multiply
156,868.84x = 216,481.04 × 85,249.99 - Step 4: Simplify right side
156,868.84x = 18,455,006,495.19 - Step 5: Solve for x
x = 18,455,006,495.19/156,868.84 - Step 6: Final answer
x = 117,646.10
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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.