Finding the Fourth Proportional to 120,866.13, 181,247.94 and 57,613.08
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Solution
The fourth proportional to 120,866.13, 181,247.94 and 57,613.08 is: 86,395.19
Step by Step Solution
- Step 1: Write the proportion equation
120,866.13 : 181,247.94 = 57,613.08 : x - Step 2: Convert to fraction form
120,866.13/181,247.94 = 57,613.08/x - Step 3: Cross multiply
120,866.13x = 181,247.94 × 57,613.08 - Step 4: Simplify right side
120,866.13x = 10,442,252,067.06 - Step 5: Solve for x
x = 10,442,252,067.06/120,866.13 - Step 6: Final answer
x = 86,395.19
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.