Finding the Fourth Proportional to 143,133.58, 214,368.09 and 138,151.45
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Solution
The fourth proportional to 143,133.58, 214,368.09 and 138,151.45 is: 206,906.46
Step by Step Solution
- Step 1: Write the proportion equation
143,133.58 : 214,368.09 = 138,151.45 : x - Step 2: Convert to fraction form
143,133.58/214,368.09 = 138,151.45/x - Step 3: Cross multiply
143,133.58x = 214,368.09 × 138,151.45 - Step 4: Simplify right side
143,133.58x = 29,615,262,467.23 - Step 5: Solve for x
x = 29,615,262,467.23/143,133.58 - Step 6: Final answer
x = 206,906.46
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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.