Finding the Fourth Proportional to 112,239.91, 168,390.62 and 56,012.14
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Solution
The fourth proportional to 112,239.91, 168,390.62 and 56,012.14 is: 84,033.56
Step by Step Solution
- Step 1: Write the proportion equation
112,239.91 : 168,390.62 = 56,012.14 : x - Step 2: Convert to fraction form
112,239.91/168,390.62 = 56,012.14/x - Step 3: Cross multiply
112,239.91x = 168,390.62 × 56,012.14 - Step 4: Simplify right side
112,239.91x = 9,431,918,982.13 - Step 5: Solve for x
x = 9,431,918,982.13/112,239.91 - Step 6: Final answer
x = 84,033.56
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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.