Finding the Fourth Proportional to 156,668.37, 216,202.79 and 85,048.44
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Solution
The fourth proportional to 156,668.37, 216,202.79 and 85,048.44 is: 117,367.09
Step by Step Solution
- Step 1: Write the proportion equation
156,668.37 : 216,202.79 = 85,048.44 : x - Step 2: Convert to fraction form
156,668.37/216,202.79 = 85,048.44/x - Step 3: Cross multiply
156,668.37x = 216,202.79 × 85,048.44 - Step 4: Simplify right side
156,668.37x = 18,387,710,013.15 - Step 5: Solve for x
x = 18,387,710,013.15/156,668.37 - Step 6: Final answer
x = 117,367.09
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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.