Finding the Fourth Proportional to 156,087.36, 215,400.56 and 84,467.38
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Solution
The fourth proportional to 156,087.36, 215,400.56 and 84,467.38 is: 116,564.99
Step by Step Solution
- Step 1: Write the proportion equation
156,087.36 : 215,400.56 = 84,467.38 : x - Step 2: Convert to fraction form
156,087.36/215,400.56 = 84,467.38/x - Step 3: Cross multiply
156,087.36x = 215,400.56 × 84,467.38 - Step 4: Simplify right side
156,087.36x = 18,194,320,953.73 - Step 5: Solve for x
x = 18,194,320,953.73/156,087.36 - Step 6: Final answer
x = 116,564.99
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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.