Finding the Fourth Proportional to 156,359.14, 215,775.62 and 84,739.14
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Solution
The fourth proportional to 156,359.14, 215,775.62 and 84,739.14 is: 116,940.01
Step by Step Solution
- Step 1: Write the proportion equation
156,359.14 : 215,775.62 = 84,739.14 : x - Step 2: Convert to fraction form
156,359.14/215,775.62 = 84,739.14/x - Step 3: Cross multiply
156,359.14x = 215,775.62 × 84,739.14 - Step 4: Simplify right side
156,359.14x = 18,284,638,969.19 - Step 5: Solve for x
x = 18,284,638,969.19/156,359.14 - Step 6: Final answer
x = 116,940.01
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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.